72484312 has 16 divisors (see below), whose sum is σ = 136185840. Its totient is φ = 36168096.

The previous prime is 72484301. The next prime is 72484331. The reversal of 72484312 is 21348427.

It is a super-2 number, since 2×72484312² = 10507950972226688, which contains 22 as substring.

It is a congruent number.

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, 4983 + ... + 13030.

It is an arithmetic number, because the mean of its divisors is an integer number (8511615).

Almost surely, 2^72484312 is an apocalyptic number.

It is an amenable number.

72484312 is a deficient number, since it is larger than the sum of its proper divisors (63701528).

72484312 is a wasteful number, since it uses less digits than its factorization.

72484312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18522 (or 18518 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 72484312 is about 8513.7719020420. The cubic root of 72484312 is about 416.9474675374.

The spelling of 72484312 in words is "seventy-two million, four hundred eighty-four thousand, three hundred twelve".