72314224 has 10 divisors (see below), whose sum is σ = 140108840. Its totient is φ = 36157104.

The previous prime is 72314183. The next prime is 72314233. The reversal of 72314224 is 42241327.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2259804 + ... + 2259835.

It is an arithmetic number, because the mean of its divisors is an integer number (14010884).

Almost surely, 2^72314224 is an apocalyptic number.

It is an amenable number.

72314224 is a deficient number, since it is larger than the sum of its proper divisors (67794616).

72314224 is a wasteful number, since it uses less digits than its factorization.

72314224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519647 (or 4519641 counting only the distinct ones).

The product of its digits is 2688, while the sum is 25.

The square root of 72314224 is about 8503.7770431732. Note that the first 3 decimals coincide. The cubic root of 72314224 is about 416.6210828710.

The spelling of 72314224 in words is "seventy-two million, three hundred fourteen thousand, two hundred twenty-four".