72523244 has 6 divisors (see below), whose sum is σ = 126915684. Its totient is φ = 36261620.

The previous prime is 72523201. The next prime is 72523267. The reversal of 72523244 is 44232527.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9065402 + ... + 9065409.

It is an arithmetic number, because the mean of its divisors is an integer number (21152614).

Almost surely, 2^72523244 is an apocalyptic number.

It is an amenable number.

72523244 is a deficient number, since it is larger than the sum of its proper divisors (54392440).

72523244 is a wasteful number, since it uses less digits than its factorization.

72523244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18130815 (or 18130813 counting only the distinct ones).

The product of its digits is 13440, while the sum is 29.

The square root of 72523244 is about 8516.0580082571. The cubic root of 72523244 is about 417.0221029676.

The spelling of 72523244 in words is "seventy-two million, five hundred twenty-three thousand, two hundred forty-four".