23957042 has 6 divisors (see below), whose sum is σ = 35945949. Its totient is φ = 11975060.

The previous prime is 23957027. The next prime is 23957047. The reversal of 23957042 is 24075932.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21520321 + 2436721 = 4639^2 + 1561^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=3461.

It is a super-2 number, since 2×23957042² = 1147879722779528, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23957047) 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 2 ways as a sum of consecutive naturals, for example, 5192 + ... + 8652.

Almost surely, 2^23957042 is an apocalyptic number.

23957042 is a deficient number, since it is larger than the sum of its proper divisors (11988907).

23957042 is an frugal number, since it uses more digits than its factorization.

23957042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924 (or 3463 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 23957042 is about 4894.5931393733. The cubic root of 23957042 is about 288.2777108412.

Multiplying 23957042 by its sum of digits (32), we get a square (766625344 = 27688²).

The spelling of 23957042 in words is "twenty-three million, nine hundred fifty-seven thousand, forty-two".