726660228 has 48 divisors (see below), whose sum is σ = 1939158144. Its totient is φ = 207467520.

The previous prime is 726660203. The next prime is 726660239. The reversal of 726660228 is 822066627.

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, 172726 + ... + 176882.

It is an arithmetic number, because the mean of its divisors is an integer number (40399128).

Almost surely, 2^726660228 is an apocalyptic number.

It is an amenable number.

726660228 is an abundant number, since it is smaller than the sum of its proper divisors (1212497916).

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

726660228 is a wasteful number, since it uses less digits than its factorization.

726660228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252 (or 6250 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 726660228 is about 26956.6360660970. The cubic root of 726660228 is about 899.0360988935.

The spelling of 726660228 in words is "seven hundred twenty-six million, six hundred sixty thousand, two hundred twenty-eight".