72441444 has 24 divisors (see below), whose sum is σ = 176379840. Its totient is φ = 23097184.

The previous prime is 72441419. The next prime is 72441463. The reversal of 72441444 is 44414427.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130959 + ... + 131510.

It is an arithmetic number, because the mean of its divisors is an integer number (7349160).

Almost surely, 2^72441444 is an apocalyptic number.

It is an amenable number.

72441444 is an abundant number, since it is smaller than the sum of its proper divisors (103938396).

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

72441444 is a wasteful number, since it uses less digits than its factorization.

72441444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262499 (or 262497 counting only the distinct ones).

The product of its digits is 14336, while the sum is 30.

The square root of 72441444 is about 8511.2539616675. The cubic root of 72441444 is about 416.8652555926.

The spelling of 72441444 in words is "seventy-two million, four hundred forty-one thousand, four hundred forty-four".