72630752 has 12 divisors (see below), whose sum is σ = 142991856. Its totient is φ = 36315360.

The previous prime is 72630743. The next prime is 72630769. The reversal of 72630752 is 25703627.

It is a happy number.

It is a super-2 number, since 2×72630752² = 10550452272171008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 2269711 = 72630752 / (7 + 2 + 6 + 3 + 0 + 7 + 5 + 2).

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, 1134824 + ... + 1134887.

It is an arithmetic number, because the mean of its divisors is an integer number (11915988).

Almost surely, 2^72630752 is an apocalyptic number.

It is an amenable number.

72630752 is a deficient number, since it is larger than the sum of its proper divisors (70361104).

72630752 is a wasteful number, since it uses less digits than its factorization.

72630752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269721 (or 2269713 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 72630752 is about 8522.3677461138. The cubic root of 72630752 is about 417.2280648750.

The spelling of 72630752 in words is "seventy-two million, six hundred thirty thousand, seven hundred fifty-two".