726270656 has 28 divisors (see below), whose sum is σ = 1442057568. Its totient is φ = 362917632.

The previous prime is 726270647. The next prime is 726270659. The reversal of 726270656 is 656072627.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (726270659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185390 + ... + 189266.

It is an arithmetic number, because the mean of its divisors is an integer number (51502056).

Almost surely, 2^726270656 is an apocalyptic number.

It is an amenable number.

726270656 is a deficient number, since it is larger than the sum of its proper divisors (715786912).

726270656 is a wasteful number, since it uses less digits than its factorization.

726270656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816 (or 6806 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 726270656 is about 26949.4091957505. The cubic root of 726270656 is about 898.8754085252.

The spelling of 726270656 in words is "seven hundred twenty-six million, two hundred seventy thousand, six hundred fifty-six".