72024644 has 12 divisors (see below), whose sum is σ = 129449964. Its totient is φ = 35038944.

The previous prime is 72024587. The next prime is 72024671. The reversal of 72024644 is 44642027.

It can be written as a sum of positive squares in 2 ways, for example, as 62599744 + 9424900 = 7912^2 + 3070^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243179 + ... + 243474.

It is an arithmetic number, because the mean of its divisors is an integer number (10787497).

Almost surely, 2^72024644 is an apocalyptic number.

72024644 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

72024644 is a deficient number, since it is larger than the sum of its proper divisors (57425320).

72024644 is a wasteful number, since it uses less digits than its factorization.

72024644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486694 (or 486692 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 72024644 is about 8486.7334116255. The cubic root of 72024644 is about 416.0642236273.

The spelling of 72024644 in words is "seventy-two million, twenty-four thousand, six hundred forty-four".