722734668 has 54 divisors (see below), whose sum is σ = 1940727516. Its totient is φ = 226737024.

The previous prime is 722734619. The next prime is 722734679. The reversal of 722734668 is 866437227.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24330 + ... + 45137.

Almost surely, 2^722734668 is an apocalyptic number.

It is an amenable number.

722734668 is an abundant number, since it is smaller than the sum of its proper divisors (1217992848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

722734668 is a wasteful number, since it uses less digits than its factorization.

722734668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69511 (or 69489 counting only the distinct ones).

The product of its digits is 677376, while the sum is 45.

The square root of 722734668 is about 26883.7249651160. The cubic root of 722734668 is about 897.4142521979.

The spelling of 722734668 in words is "seven hundred twenty-two million, seven hundred thirty-four thousand, six hundred sixty-eight".