72450764 has 12 divisors (see below), whose sum is σ = 127014888. Its totient is φ = 36160800.

The previous prime is 72450757. The next prime is 72450769. The reversal of 72450764 is 46705427.

It is a super-2 number, since 2×72450764² = 10498226408367392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72450769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13577 + ... + 18144.

It is an arithmetic number, because the mean of its divisors is an integer number (10584574).

Almost surely, 2^72450764 is an apocalyptic number.

It is an amenable number.

72450764 is a deficient number, since it is larger than the sum of its proper divisors (54564124).

72450764 is a wasteful number, since it uses less digits than its factorization.

72450764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32296 (or 32294 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 72450764 is about 8511.8014544513. The cubic root of 72450764 is about 416.8831321807.

The spelling of 72450764 in words is "seventy-two million, four hundred fifty thousand, seven hundred sixty-four".