72452944 has 80 divisors (see below), whose sum is σ = 154275840. Its totient is φ = 32869760.

The previous prime is 72452917. The next prime is 72452953. The reversal of 72452944 is 44925427.

It is a congruent number.

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, 1020429 + ... + 1020499.

It is an arithmetic number, because the mean of its divisors is an integer number (1928448).

Almost surely, 2^72452944 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 72452944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77137920).

72452944 is an abundant number, since it is smaller than the sum of its proper divisors (81822896).

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

72452944 is a wasteful number, since it uses less digits than its factorization.

72452944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 202 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 72452944 is about 8511.9295109863. The cubic root of 72452944 is about 416.8873133932.

The spelling of 72452944 in words is "seventy-two million, four hundred fifty-two thousand, nine hundred forty-four".