23181696 has 48 divisors (see below), whose sum is σ = 66711060. Its totient is φ = 7726848.

The previous prime is 23181679. The next prime is 23181731. The reversal of 23181696 is 69618132.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 23181696.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8910 + ... + 11213.

Almost surely, 2^23181696 is an apocalyptic number.

It is an amenable number.

23181696 is an abundant number, since it is smaller than the sum of its proper divisors (43529364).

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

23181696 is a wasteful number, since it uses less digits than its factorization.

23181696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20143 (or 20128 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 23181696 is about 4814.7373760154. The cubic root of 23181696 is about 285.1336031027.

The spelling of 23181696 in words is "twenty-three million, one hundred eighty-one thousand, six hundred ninety-six".