23536720 has 40 divisors (see below), whose sum is σ = 54996480. Its totient is φ = 9367680.

The previous prime is 23536703. The next prime is 23536729. The reversal of 23536720 is 2763532.

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

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23536729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18505 + ... + 19735.

It is an arithmetic number, because the mean of its divisors is an integer number (1374912).

Almost surely, 2^23536720 is an apocalyptic number.

23536720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23536720 is an abundant number, since it is smaller than the sum of its proper divisors (31459760).

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

23536720 is a wasteful number, since it uses less digits than its factorization.

23536720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 23536720 is about 4851.4657578921. The cubic root of 23536720 is about 286.5818269461.

The spelling of 23536720 in words is "twenty-three million, five hundred thirty-six thousand, seven hundred twenty".