726274624 has 14 divisors (see below), whose sum is σ = 1441201334. Its totient is φ = 363137280.

The previous prime is 726274609. The next prime is 726274631. The reversal of 726274624 is 426472627.

It can be written as a sum of positive squares in only one way, i.e., 667292224 + 58982400 = 25832^2 + 7680^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5673957 + ... + 5674084.

Almost surely, 2^726274624 is an apocalyptic number.

It is an amenable number.

726274624 is a deficient number, since it is larger than the sum of its proper divisors (714926710).

726274624 is a wasteful number, since it uses less digits than its factorization.

726274624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11348053 (or 11348043 counting only the distinct ones).

The product of its digits is 225792, while the sum is 40.

The square root of 726274624 is about 26949.4828150746. The cubic root of 726274624 is about 898.8770455325.

The spelling of 726274624 in words is "seven hundred twenty-six million, two hundred seventy-four thousand, six hundred twenty-four".