23630520 has 64 divisors (see below), whose sum is σ = 71331840. Its totient is φ = 6262400.

The previous prime is 23630513. The next prime is 23630539. The reversal of 23630520 is 2503632.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 22405 + ... + 23435.

It is an arithmetic number, because the mean of its divisors is an integer number (1114560).

Almost surely, 2^23630520 is an apocalyptic number.

23630520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23630520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35665920).

23630520 is an abundant number, since it is smaller than the sum of its proper divisors (47701320).

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

23630520 is a wasteful number, since it uses less digits than its factorization.

23630520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 23630520 is about 4861.1233269688. The cubic root of 23630520 is about 286.9620235700.

The spelling of 23630520 in words is "twenty-three million, six hundred thirty thousand, five hundred twenty".