23712290 has 16 divisors (see below), whose sum is σ = 48779712. Its totient is φ = 8129904.

The previous prime is 23712257. The next prime is 23712313. The reversal of 23712290 is 9221732.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169304 + ... + 169443.

It is an arithmetic number, because the mean of its divisors is an integer number (3048732).

Almost surely, 2^23712290 is an apocalyptic number.

23712290 is an abundant number, since it is smaller than the sum of its proper divisors (25067422).

23712290 is a wasteful number, since it uses less digits than its factorization.

23712290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338761.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 23712290 is about 4869.5266710431. The cubic root of 23712290 is about 287.2926393861.

The spelling of 23712290 in words is "twenty-three million, seven hundred twelve thousand, two hundred ninety".