23932920 has 64 divisors (see below), whose sum is σ = 78330240. Its totient is φ = 5801600.

The previous prime is 23932879. The next prime is 23932921. The reversal of 23932920 is 2923932.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23932921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7746 + ... + 10385.

It is an arithmetic number, because the mean of its divisors is an integer number (1223910).

Almost surely, 2^23932920 is an apocalyptic number.

23932920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23932920 is an abundant number, since it is smaller than the sum of its proper divisors (54397320).

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

23932920 is a wasteful number, since it uses less digits than its factorization.

23932920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18156 (or 18152 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 23932920 is about 4892.1283711693. The cubic root of 23932920 is about 288.1809241267.

The spelling of 23932920 in words is "twenty-three million, nine hundred thirty-two thousand, nine hundred twenty".