726651264 has 128 divisors (see below), whose sum is σ = 2059624800. Its totient is φ = 226197504.

The previous prime is 726651227. The next prime is 726651283. The reversal of 726651264 is 462156627.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1024542 + ... + 1025250.

Almost surely, 2^726651264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726651264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1029812400).

726651264 is an abundant number, since it is smaller than the sum of its proper divisors (1332973536).

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

726651264 is a wasteful number, since it uses less digits than its factorization.

726651264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 888 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 726651264 is about 26956.4697985474. The cubic root of 726651264 is about 899.0324020751.

The spelling of 726651264 in words is "seven hundred twenty-six million, six hundred fifty-one thousand, two hundred sixty-four".