722528260 has 12 divisors (see below), whose sum is σ = 1517309388. Its totient is φ = 289011296.

The previous prime is 722528249. The next prime is 722528263. The reversal of 722528260 is 62825227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 468635904 + 253892356 = 21648^2 + 15934^2 .

It is not an unprimeable number, because it can be changed into a prime (722528263) 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, 18063187 + ... + 18063226.

It is an arithmetic number, because the mean of its divisors is an integer number (126442449).

Almost surely, 2^722528260 is an apocalyptic number.

It is an amenable number.

722528260 is an abundant number, since it is smaller than the sum of its proper divisors (794781128).

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

722528260 is a wasteful number, since it uses less digits than its factorization.

722528260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36126422 (or 36126420 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 722528260 is about 26879.8857884478. The cubic root of 722528260 is about 897.3288123052.

The spelling of 722528260 in words is "seven hundred twenty-two million, five hundred twenty-eight thousand, two hundred sixty".