726944464 has 20 divisors (see below), whose sum is σ = 1410756804. Its totient is φ = 362878208.

The previous prime is 726944459. The next prime is 726944467. The reversal of 726944464 is 464449627.

It can be written as a sum of positive squares in 2 ways, for example, as 388090000 + 338854464 = 19700^2 + 18408^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726944467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26947 + ... + 46690.

Almost surely, 2^726944464 is an apocalyptic number.

It is an amenable number.

726944464 is a deficient number, since it is larger than the sum of its proper divisors (683812340).

726944464 is a wasteful number, since it uses less digits than its factorization.

726944464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74262 (or 74256 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 46.

The square root of 726944464 is about 26961.9076476424. The cubic root of 726944464 is about 899.1533041125.

The spelling of 726944464 in words is "seven hundred twenty-six million, nine hundred forty-four thousand, four hundred sixty-four".