23565642 has 48 divisors (see below), whose sum is σ = 50237856. Its totient is φ = 7365600.

The previous prime is 23565613. The next prime is 23565667. The reversal of 23565642 is 24656532.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 351693 + ... + 351759.

It is an arithmetic number, because the mean of its divisors is an integer number (1046622).

Almost surely, 2^23565642 is an apocalyptic number.

23565642 is an abundant number, since it is smaller than the sum of its proper divisors (26672214).

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

23565642 is a wasteful number, since it uses less digits than its factorization.

23565642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195 (or 164 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 23565642 is about 4854.4455914141. The cubic root of 23565642 is about 286.6991631330.

The spelling of 23565642 in words is "twenty-three million, five hundred sixty-five thousand, six hundred forty-two".