23257164 has 72 divisors (see below), whose sum is σ = 64893360. Its totient is φ = 6459264.

The previous prime is 23257147. The next prime is 23257177. The reversal of 23257164 is 46175232.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21222 + ... + 22290.

Almost surely, 2^23257164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23257164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32446680).

23257164 is an abundant number, since it is smaller than the sum of its proper divisors (41636196).

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

23257164 is a wasteful number, since it uses less digits than its factorization.

23257164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1118 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 23257164 is about 4822.5681954743. The cubic root of 23257164 is about 285.4426853744.

The spelling of 23257164 in words is "twenty-three million, two hundred fifty-seven thousand, one hundred sixty-four".