23520072 has 64 divisors (see below), whose sum is σ = 61493760. Its totient is φ = 7488000.

The previous prime is 23520067. The next prime is 23520083. The reversal of 23520072 is 27002532.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74988 + ... + 75300.

It is an arithmetic number, because the mean of its divisors is an integer number (960840).

Almost surely, 2^23520072 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 23520072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30746880).

23520072 is an abundant number, since it is smaller than the sum of its proper divisors (37973688).

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

23520072 is a wasteful number, since it uses less digits than its factorization.

23520072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 23520072 is about 4849.7496842621. The cubic root of 23520072 is about 286.5142426271.

The spelling of 23520072 in words is "twenty-three million, five hundred twenty thousand, seventy-two".