72322064 has 10 divisors (see below), whose sum is σ = 140124030. Its totient is φ = 36161024.

The previous prime is 72322057. The next prime is 72322099. The reversal of 72322064 is 46022327.

It can be written as a sum of positive squares in only one way, i.e., 47720464 + 24601600 = 6908^2 + 4960^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2260049 + ... + 2260080.

It is an arithmetic number, because the mean of its divisors is an integer number (14012403).

Almost surely, 2^72322064 is an apocalyptic number.

It is an amenable number.

72322064 is a deficient number, since it is larger than the sum of its proper divisors (67801966).

72322064 is a wasteful number, since it uses less digits than its factorization.

72322064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520137 (or 4520131 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 72322064 is about 8504.2380023139. The cubic root of 72322064 is about 416.6361384211.

The spelling of 72322064 in words is "seventy-two million, three hundred twenty-two thousand, sixty-four".