23648720 has 40 divisors (see below), whose sum is σ = 55186944. Its totient is φ = 9424512.

The previous prime is 23648719. The next prime is 23648731. The reversal of 23648720 is 2784632.

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

It is a congruent number.

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, 38657 + ... + 39263.

Almost surely, 2^23648720 is an apocalyptic number.

23648720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23648720 is an abundant number, since it is smaller than the sum of its proper divisors (31538224).

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

23648720 is a wasteful number, since it uses less digits than its factorization.

23648720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 23648720 is about 4862.9949619550. The cubic root of 23648720 is about 287.0356764643.

The spelling of 23648720 in words is "twenty-three million, six hundred forty-eight thousand, seven hundred twenty".