23945690 has 32 divisors (see below), whose sum is σ = 46241280. Its totient is φ = 8895744.

The previous prime is 23945683. The next prime is 23945699. The reversal of 23945690 is 9654932.

It is a super-2 number, since 2×23945690² = 1146792139152200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23945699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12539 + ... + 14321.

It is an arithmetic number, because the mean of its divisors is an integer number (1445040).

Almost surely, 2^23945690 is an apocalyptic number.

23945690 is a deficient number, since it is larger than the sum of its proper divisors (22295590).

23945690 is a wasteful number, since it uses less digits than its factorization.

23945690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 23945690 is about 4893.4333550177. The cubic root of 23945690 is about 288.2321703608.

The spelling of 23945690 in words is "twenty-three million, nine hundred forty-five thousand, six hundred ninety".