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22874404 = 2271923173
BaseRepresentation
bin101011101000…
…0100100100100
31121001010210011
41113100210210
521323440104
62134140004
7365300140
oct127204444
947033704
1022874404
1111a03973
1277b1604
13497b867
143076220
15201c904
hex15d0924

22874404 has 72 divisors (see below), whose sum is σ = 50523648. Its totient is φ = 8864640.

The previous prime is 22874393. The next prime is 22874407. The reversal of 22874404 is 40447822.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22874407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313312 + ... + 313384.

Almost surely, 222874404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22874404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25261824).

22874404 is an abundant number, since it is smaller than the sum of its proper divisors (27649244).

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

22874404 is a wasteful number, since it uses less digits than its factorization.

22874404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 31.

The square root of 22874404 is about 4782.7193101833. The cubic root of 22874404 is about 283.8681031386.

The spelling of 22874404 in words is "twenty-two million, eight hundred seventy-four thousand, four hundred four".

Divisors: 1 2 4 7 14 19 28 31 38 62 73 76 124 133 146 217 266 292 361 434 511 532 589 722 868 1022 1178 1387 1444 2044 2263 2356 2527 2774 4123 4526 5054 5548 8246 9052 9709 10108 11191 15841 16492 19418 22382 26353 31682 38836 42997 44764 52706 63364 78337 85994 105412 156674 171988 184471 300979 313348 368942 601958 737884 816943 1203916 1633886 3267772 5718601 11437202 22874404