23668990 has 16 divisors (see below), whose sum is σ = 42941952. Its totient is φ = 9392544.

The previous prime is 23668969. The next prime is 23668993. The reversal of 23668990 is 9986632.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23668993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8049 + ... + 10588.

It is an arithmetic number, because the mean of its divisors is an integer number (2683872).

Almost surely, 2^23668990 is an apocalyptic number.

23668990 is a deficient number, since it is larger than the sum of its proper divisors (19272962).

23668990 is a wasteful number, since it uses less digits than its factorization.

23668990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18771.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 23668990 is about 4865.0786221807. The cubic root of 23668990 is about 287.1176618971.

The spelling of 23668990 in words is "twenty-three million, six hundred sixty-eight thousand, nine hundred ninety".