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40401433240 = 2357314654543
BaseRepresentation
bin100101101000000111…
…001111001010011000
310212021122102110101021
4211220013033022120
51130220231330430
630320554532224
72630120342050
oct455007171230
9125248373337
1040401433240
1116152612853
1279b6437074
133a6b2a631c
141d53a26560
1510b6d8007a
hex9681cf298

40401433240 has 64 divisors (see below), whose sum is σ = 107240693760. Its totient is φ = 13405080960.

The previous prime is 40401433223. The next prime is 40401433277. The reversal of 40401433240 is 4233410404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318592 + ... + 2335951.

It is an arithmetic number, because the mean of its divisors is an integer number (1675635840).

Almost surely, 240401433240 is an apocalyptic number.

40401433240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40401433240 is an abundant number, since it is smaller than the sum of its proper divisors (66839260520).

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

40401433240 is a wasteful number, since it uses less digits than its factorization.

40401433240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4654592 (or 4654588 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 40401433240 its reverse (4233410404), we get a palindrome (44634843644).

The spelling of 40401433240 in words is "forty billion, four hundred one million, four hundred thirty-three thousand, two hundred forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 31 35 40 56 62 70 124 140 155 217 248 280 310 434 620 868 1085 1240 1736 2170 4340 8680 4654543 9309086 18618172 23272715 32581801 37236344 46545430 65163602 93090860 130327204 144290833 162909005 186181720 260654408 288581666 325818010 577163332 651636020 721454165 1010035831 1154326664 1303272040 1442908330 2020071662 2885816660 4040143324 5050179155 5771633320 8080286648 10100358310 20200716620 40401433240