23499072 has 84 divisors (see below), whose sum is σ = 69896736. Its totient is φ = 7827840.

The previous prime is 23499059. The next prime is 23499079. The reversal of 23499072 is 27099432.

It is a super-2 number, since 2×23499072² = 1104412769722368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23499079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14797 + ... + 16307.

It is an arithmetic number, because the mean of its divisors is an integer number (832104).

Almost surely, 2^23499072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23499072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34948368).

23499072 is an abundant number, since it is smaller than the sum of its proper divisors (46397664).

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

23499072 is an equidigital number, since it uses as much as digits as its factorization.

23499072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 23499072 is about 4847.5841405797. The cubic root of 23499072 is about 286.4289454011.

The spelling of 23499072 in words is "twenty-three million, four hundred ninety-nine thousand, seventy-two".