726664464 has 30 divisors (see below), whose sum is σ = 2033651646. Its totient is φ = 242221440.

The previous prime is 726664451. The next prime is 726664469. The reversal of 726664464 is 464466627.

It can be written as a sum of positive squares in only one way, i.e., 660078864 + 66585600 = 25692^2 + 8160^2 .

It is not an unprimeable number, because it can be changed into a prime (726664469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2522997 + ... + 2523284.

Almost surely, 2^726664464 is an apocalyptic number.

It is an amenable number.

726664464 is an abundant number, since it is smaller than the sum of its proper divisors (1306987182).

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

726664464 is a wasteful number, since it uses less digits than its factorization.

726664464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5046295 (or 5046286 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 45.

The square root of 726664464 is about 26956.7146366170. The cubic root of 726664464 is about 899.0378458399.

The spelling of 726664464 in words is "seven hundred twenty-six million, six hundred sixty-four thousand, four hundred sixty-four".