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1408122468 = 223423375107
BaseRepresentation
bin101001111101110…
…0011111001100100
310122010122000220000
41103323203321210
510340434404333
6351420541300
746615562214
oct12373437144
93563560800
101408122468
11662937285
123336b1830
1319596387c
14d5028244
158394b713
hex53ee3e64

1408122468 has 120 divisors (see below), whose sum is σ = 3945746112. Its totient is φ = 436746816.

The previous prime is 1408122439. The next prime is 1408122487. The reversal of 1408122468 is 8642218041.

1408122468 is a `hidden beast` number, since 1 + 408 + 1 + 2 + 246 + 8 = 666.

It is a super-2 number, since 2×14081224682 = 3965617769772822048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 273171 + ... + 278277.

Almost surely, 21408122468 is an apocalyptic number.

1408122468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1408122468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1972873056).

1408122468 is an abundant number, since it is smaller than the sum of its proper divisors (2537623644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1408122468 is a wasteful number, since it uses less digits than its factorization.

1408122468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183 (or 5172 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 1408122468 is about 37524.9579346866. The cubic root of 1408122468 is about 1120.8482275466.

The spelling of 1408122468 in words is "one billion, four hundred eight million, one hundred twenty-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 23 27 36 37 46 54 69 74 81 92 108 111 138 148 162 207 222 276 324 333 414 444 621 666 828 851 999 1242 1332 1702 1863 1998 2484 2553 2997 3404 3726 3996 5106 5107 5994 7452 7659 10212 10214 11988 15318 15321 20428 22977 30636 30642 45954 45963 61284 68931 91908 91926 117461 137862 137889 183852 188959 234922 275724 275778 352383 377918 413667 469844 551556 566877 704766 755836 827334 1057149 1133754 1409532 1654668 1700631 2114298 2267508 3171447 3401262 4228596 4346057 5101893 6342894 6802524 8692114 9514341 10203786 12685788 13038171 15305679 17384228 19028682 20407572 26076342 30611358 38057364 39114513 52152684 61222716 78229026 117343539 156458052 234687078 352030617 469374156 704061234 1408122468