23440872 has 64 divisors (see below), whose sum is σ = 72132480. Its totient is φ = 6181632.

The previous prime is 23440871. The next prime is 23440873. The reversal of 23440872 is 27804432.

It is an interprime number because it is at equal distance from previous prime (23440871) and next prime (23440873).

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

It is not an unprimeable number, because it can be changed into a prime (23440871) 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, 3183 + ... + 7550.

It is an arithmetic number, because the mean of its divisors is an integer number (1127070).

Almost surely, 2^23440872 is an apocalyptic number.

It is an amenable number.

23440872 is an abundant number, since it is smaller than the sum of its proper divisors (48691608).

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

23440872 is a wasteful number, since it uses less digits than its factorization.

23440872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10762 (or 10758 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 23440872 is about 4841.5774288965. The cubic root of 23440872 is about 286.1922843408.

The spelling of 23440872 in words is "twenty-three million, four hundred forty thousand, eight hundred seventy-two".