23258216 has 16 divisors (see below), whose sum is σ = 43929540. Its totient is φ = 11543680.

The previous prime is 23258197. The next prime is 23258219. The reversal of 23258216 is 61285232.

It can be written as a sum of positive squares in 2 ways, for example, as 20666116 + 2592100 = 4546^2 + 1610^2 .

It is a super-2 number, since 2×23258216² = 1081889223005312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23258219) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9515 + ... + 11706.

Almost surely, 2^23258216 is an apocalyptic number.

It is an amenable number.

23258216 is a deficient number, since it is larger than the sum of its proper divisors (20671324).

23258216 is a wasteful number, since it uses less digits than its factorization.

23258216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21364 (or 21360 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 23258216 is about 4822.6772647566. The cubic root of 23258216 is about 285.4469891548.

The spelling of 23258216 in words is "twenty-three million, two hundred fifty-eight thousand, two hundred sixteen".