722169944 has 16 divisors (see below), whose sum is σ = 1379617920. Its totient is φ = 354271840.

The previous prime is 722169937. The next prime is 722169949. The reversal of 722169944 is 449961227.

It is a junction number, because it is equal to n+sod(n) for n = 722169895 and 722169904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722169949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 851192 + ... + 852039.

It is an arithmetic number, because the mean of its divisors is an integer number (86226120).

Almost surely, 2^722169944 is an apocalyptic number.

It is an amenable number.

722169944 is a deficient number, since it is larger than the sum of its proper divisors (657447976).

722169944 is a wasteful number, since it uses less digits than its factorization.

722169944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703290 (or 1703286 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 722169944 is about 26873.2198294138. The cubic root of 722169944 is about 897.1804534318.

The spelling of 722169944 in words is "seven hundred twenty-two million, one hundred sixty-nine thousand, nine hundred forty-four".