23970720 has 48 divisors (see below), whose sum is σ = 75509280. Its totient is φ = 6392064.

The previous prime is 23970701. The next prime is 23970721. The reversal of 23970720 is 2707932.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (23970721) 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, 24490 + ... + 25449.

It is an arithmetic number, because the mean of its divisors is an integer number (1573110).

Almost surely, 2^23970720 is an apocalyptic number.

23970720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23970720 is an abundant number, since it is smaller than the sum of its proper divisors (51538560).

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

23970720 is a wasteful number, since it uses less digits than its factorization.

23970720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49957 (or 49949 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

The square root of 23970720 is about 4895.9901960686. The cubic root of 23970720 is about 288.3325633609.

The spelling of 23970720 in words is "twenty-three million, nine hundred seventy thousand, seven hundred twenty".