23499690 has 16 divisors (see below), whose sum is σ = 56399328. Its totient is φ = 6266576.

The previous prime is 23499689. The next prime is 23499719. The reversal of 23499690 is 9699432.

It is a super-2 number, since 2×23499690² = 1104470860192200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 391632 + ... + 391691.

It is an arithmetic number, because the mean of its divisors is an integer number (3524958).

Almost surely, 2^23499690 is an apocalyptic number.

23499690 is an abundant number, since it is smaller than the sum of its proper divisors (32899638).

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

23499690 is a wasteful number, since it uses less digits than its factorization.

23499690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783333.

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 23499690 is about 4847.6478832522. The cubic root of 23499690 is about 286.4314563022.

The spelling of 23499690 in words is "twenty-three million, four hundred ninety-nine thousand, six hundred ninety".