722938860 has 72 divisors (see below), whose sum is σ = 2506192416. Its totient is φ = 165242880.

The previous prime is 722938831. The next prime is 722938873. The reversal of 722938860 is 68839227.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285621 + ... + 288140.

It is an arithmetic number, because the mean of its divisors is an integer number (34808228).

Almost surely, 2^722938860 is an apocalyptic number.

722938860 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

722938860 is an abundant number, since it is smaller than the sum of its proper divisors (1783253556).

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

722938860 is a wasteful number, since it uses less digits than its factorization.

722938860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573783 (or 573778 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 722938860 is about 26887.5223849279. The cubic root of 722938860 is about 897.4987588016.

The spelling of 722938860 in words is "seven hundred twenty-two million, nine hundred thirty-eight thousand, eight hundred sixty".