22975440 has 40 divisors (see below), whose sum is σ = 71224608. Its totient is φ = 6126720.

The previous prime is 22975429. The next prime is 22975441. The reversal of 22975440 is 4457922.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22975441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47626 + ... + 48105.

Almost surely, 2^22975440 is an apocalyptic number.

22975440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22975440 is an abundant number, since it is smaller than the sum of its proper divisors (48249168).

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

22975440 is a wasteful number, since it uses less digits than its factorization.

22975440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95747 (or 95741 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 22975440 is about 4793.2702823855. The cubic root of 22975440 is about 284.2854367552.

The spelling of 22975440 in words is "twenty-two million, nine hundred seventy-five thousand, four hundred forty".