23630820 has 24 divisors (see below), whose sum is σ = 66166464. Its totient is φ = 6301536.

The previous prime is 23630819. The next prime is 23630837. The reversal of 23630820 is 2803632.

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, 196864 + ... + 196983.

It is an arithmetic number, because the mean of its divisors is an integer number (2756936).

Almost surely, 2^23630820 is an apocalyptic number.

23630820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23630820 is an abundant number, since it is smaller than the sum of its proper divisors (42535644).

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

23630820 is a wasteful number, since it uses less digits than its factorization.

23630820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393859 (or 393857 counting only the distinct ones).

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

The square root of 23630820 is about 4861.1541839362. The cubic root of 23630820 is about 286.9632379352.

It can be divided in two parts, 236308 and 20, that added together give a triangular number (236328 = T₆₈₇).

The spelling of 23630820 in words is "twenty-three million, six hundred thirty thousand, eight hundred twenty".