23943320 has 32 divisors (see below), whose sum is σ = 54561600. Its totient is φ = 9454848.

The previous prime is 23943319. The next prime is 23943323. The reversal of 23943320 is 2334932.

It is a self number, because there is not a number n which added to its sum of digits gives 23943320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23943323) 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, 629 + ... + 6948.

It is an arithmetic number, because the mean of its divisors is an integer number (1705050).

Almost surely, 2^23943320 is an apocalyptic number.

23943320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23943320 is an abundant number, since it is smaller than the sum of its proper divisors (30618280).

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

23943320 is a wasteful number, since it uses less digits than its factorization.

23943320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7667 (or 7663 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 23943320 is about 4893.1911877628. The cubic root of 23943320 is about 288.2226608864. Note that the first 3 decimals are identical.

The spelling of 23943320 in words is "twenty-three million, nine hundred forty-three thousand, three hundred twenty".