23523216 has 40 divisors (see below), whose sum is σ = 63969120. Its totient is φ = 7428096.

The previous prime is 23523191. The next prime is 23523239. The reversal of 23523216 is 61232532.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 11985 + ... + 13808.

It is an arithmetic number, because the mean of its divisors is an integer number (1599228).

Almost surely, 2^23523216 is an apocalyptic number.

It is an amenable number.

23523216 is an abundant number, since it is smaller than the sum of its proper divisors (40445904).

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

23523216 is a wasteful number, since it uses less digits than its factorization.

23523216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25823 (or 25817 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 23523216 is about 4850.0738138713. The cubic root of 23523216 is about 286.5270084702.

Adding to 23523216 its reverse (61232532), we get a palindrome (84755748).

The spelling of 23523216 in words is "twenty-three million, five hundred twenty-three thousand, two hundred sixteen".