23372720 has 40 divisors (see below), whose sum is σ = 62106144. Its totient is φ = 8013312.

The previous prime is 23372707. The next prime is 23372801. The reversal of 23372720 is 2727332.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 23372720.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20309 + ... + 21428.

Almost surely, 2^23372720 is an apocalyptic number.

23372720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23372720 is an abundant number, since it is smaller than the sum of its proper divisors (38733424).

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

23372720 is a wasteful number, since it uses less digits than its factorization.

23372720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41757 (or 41751 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 26.

The square root of 23372720 is about 4834.5341037167. The cubic root of 23372720 is about 285.9146565903.

The spelling of 23372720 in words is "twenty-three million, three hundred seventy-two thousand, seven hundred twenty".