23306820 has 48 divisors (see below), whose sum is σ = 68100480. Its totient is φ = 5944576.

The previous prime is 23306753. The next prime is 23306831. The reversal of 23306820 is 2860332.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7065 + ... + 9824.

It is an arithmetic number, because the mean of its divisors is an integer number (1418760).

Almost surely, 2^23306820 is an apocalyptic number.

23306820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23306820 is an abundant number, since it is smaller than the sum of its proper divisors (44793660).

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

23306820 is a wasteful number, since it uses less digits than its factorization.

23306820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16924 (or 16922 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 23306820 is about 4827.7137446207. The cubic root of 23306820 is about 285.6456890082.

The spelling of 23306820 in words is "twenty-three million, three hundred six thousand, eight hundred twenty".