722801940 has 72 divisors (see below), whose sum is σ = 2354278752. Its totient is φ = 165211200.

The previous prime is 722801917. The next prime is 722801951. The reversal of 722801940 is 49108227.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119986 + ... + 125865.

It is an arithmetic number, because the mean of its divisors is an integer number (32698316).

Almost surely, 2^722801940 is an apocalyptic number.

722801940 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

722801940 is an abundant number, since it is smaller than the sum of its proper divisors (1631476812).

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

722801940 is a wasteful number, since it uses less digits than its factorization.

722801940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245877 (or 245868 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 722801940 is about 26884.9761019049. The cubic root of 722801940 is about 897.4420950478.

The spelling of 722801940 in words is "seven hundred twenty-two million, eight hundred one thousand, nine hundred forty".