722668448 has 24 divisors (see below), whose sum is σ = 1435351428. Its totient is φ = 358134784.

The previous prime is 722668421. The next prime is 722668451. The reversal of 722668448 is 844866227.

It can be written as a sum of positive squares in 2 ways, for example, as 717596944 + 5071504 = 26788^2 + 2252^2 .

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, 96311 + ... + 103542.

Almost surely, 2^722668448 is an apocalyptic number.

It is an amenable number.

722668448 is a deficient number, since it is larger than the sum of its proper divisors (712682980).

722668448 is a wasteful number, since it uses less digits than its factorization.

722668448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199976 (or 199968 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The square root of 722668448 is about 26882.4933367424. The cubic root of 722668448 is about 897.3868430673.

The spelling of 722668448 in words is "seven hundred twenty-two million, six hundred sixty-eight thousand, four hundred forty-eight".