72274460 has 12 divisors (see below), whose sum is σ = 151776408. Its totient is φ = 28909776.

The previous prime is 72274459. The next prime is 72274471. The reversal of 72274460 is 6447227.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 1806842 + ... + 1806881.

It is an arithmetic number, because the mean of its divisors is an integer number (12648034).

Almost surely, 2^72274460 is an apocalyptic number.

It is an amenable number.

72274460 is an abundant number, since it is smaller than the sum of its proper divisors (79501948).

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

72274460 is a wasteful number, since it uses less digits than its factorization.

72274460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613732 (or 3613730 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 32.

The square root of 72274460 is about 8501.4387017728. The cubic root of 72274460 is about 416.5447052823.

The spelling of 72274460 in words is "seventy-two million, two hundred seventy-four thousand, four hundred sixty".