23657242 has 16 divisors (see below), whose sum is σ = 42690240. Its totient is φ = 9605088.

The previous prime is 23657219. The next prime is 23657273. The reversal of 23657242 is 24275632.

23657242 = 354² + 355² + ... + 486².

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44203 + ... + 44734.

It is an arithmetic number, because the mean of its divisors is an integer number (2668140).

Almost surely, 2^23657242 is an apocalyptic number.

23657242 is a deficient number, since it is larger than the sum of its proper divisors (19032998).

23657242 is a wasteful number, since it uses less digits than its factorization.

23657242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88965.

The product of its digits is 20160, while the sum is 31.

The square root of 23657242 is about 4863.8710920418. The cubic root of 23657242 is about 287.0701508357.

The spelling of 23657242 in words is "twenty-three million, six hundred fifty-seven thousand, two hundred forty-two".