72204744 has 32 divisors (see below), whose sum is σ = 180774720. Its totient is φ = 24033216.

The previous prime is 72204733. The next prime is 72204749. The reversal of 72204744 is 44740227.

It is a super-2 number, since 2×72204744² = 10427050112211072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72204749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18709 + ... + 22235.

It is an arithmetic number, because the mean of its divisors is an integer number (5649210).

Almost surely, 2^72204744 is an apocalyptic number.

It is an amenable number.

72204744 is an abundant number, since it is smaller than the sum of its proper divisors (108569976).

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

72204744 is a wasteful number, since it uses less digits than its factorization.

72204744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389 (or 4385 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 30.

The square root of 72204744 is about 8497.3374653476. The cubic root of 72204744 is about 416.4107290803.

The spelling of 72204744 in words is "seventy-two million, two hundred four thousand, seven hundred forty-four".