23656416 has 144 divisors (see below), whose sum is σ = 74462976. Its totient is φ = 6553344.

The previous prime is 23656363. The next prime is 23656447. The reversal of 23656416 is 61465632.

It is a congruent number.

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, 221035 + ... + 221141.

It is an arithmetic number, because the mean of its divisors is an integer number (517104).

Almost surely, 2^23656416 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 23656416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37231488).

23656416 is an abundant number, since it is smaller than the sum of its proper divisors (50806560).

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

23656416 is a wasteful number, since it uses less digits than its factorization.

23656416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 166 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 23656416 is about 4863.7861795108. The cubic root of 23656416 is about 287.0668097488.

The spelling of 23656416 in words is "twenty-three million, six hundred fifty-six thousand, four hundred sixteen".