23900290 has 16 divisors (see below), whose sum is σ = 45285120. Its totient is φ = 9056880.

The previous prime is 23900281. The next prime is 23900311. The reversal of 23900290 is 9200932.

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, 62706 + ... + 63085.

It is an arithmetic number, because the mean of its divisors is an integer number (2830320).

Almost surely, 2^23900290 is an apocalyptic number.

23900290 is a deficient number, since it is larger than the sum of its proper divisors (21384830).

23900290 is a wasteful number, since it uses less digits than its factorization.

23900290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125817.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 23900290 is about 4888.7922843991. The cubic root of 23900290 is about 288.0498965117.

The spelling of 23900290 in words is "twenty-three million, nine hundred thousand, two hundred ninety".