23937040 has 20 divisors (see below), whose sum is σ = 55653804. Its totient is φ = 9574784.

The previous prime is 23937029. The next prime is 23937041. The reversal of 23937040 is 4073932.

It can be written as a sum of positive squares in 2 ways, for example, as 19079424 + 4857616 = 4368^2 + 2204^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (23937041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149527 + ... + 149686.

Almost surely, 2^23937040 is an apocalyptic number.

23937040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23937040 is an abundant number, since it is smaller than the sum of its proper divisors (31716764).

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

23937040 is a wasteful number, since it uses less digits than its factorization.

23937040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299226 (or 299220 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 23937040 is about 4892.5494376654. The cubic root of 23937040 is about 288.1974597505.

The spelling of 23937040 in words is "twenty-three million, nine hundred thirty-seven thousand, forty".