23337920 has 28 divisors (see below), whose sum is σ = 55574184. Its totient is φ = 9335040.

The previous prime is 23337917. The next prime is 23337973. The reversal of 23337920 is 2973332.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36146 + ... + 36785.

Almost surely, 2^23337920 is an apocalyptic number.

23337920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23337920 is an abundant number, since it is smaller than the sum of its proper divisors (32236264).

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

23337920 is an equidigital number, since it uses as much as digits as its factorization.

23337920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72948 (or 72938 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 29.

The square root of 23337920 is about 4830.9336571723. The cubic root of 23337920 is about 285.7726852053.

The spelling of 23337920 in words is "twenty-three million, three hundred thirty-seven thousand, nine hundred twenty".