726660844 has 24 divisors (see below), whose sum is σ = 1565116448. Its totient is φ = 287470080.

The previous prime is 726660829. The next prime is 726660877. The reversal of 726660844 is 448066627.

It is a self number, because there is not a number n which added to its sum of digits gives 726660844.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997797 + ... + 998524.

Almost surely, 2^726660844 is an apocalyptic number.

It is an amenable number.

726660844 is an abundant number, since it is smaller than the sum of its proper divisors (838455604).

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

726660844 is a wasteful number, since it uses less digits than its factorization.

726660844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996345 (or 1996343 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 726660844 is about 26956.6474918525. The cubic root of 726660844 is about 899.0363529352.

The spelling of 726660844 in words is "seven hundred twenty-six million, six hundred sixty thousand, eight hundred forty-four".