722494939 has 8 divisors (see below), whose sum is σ = 730543968. Its totient is φ = 714490560.

The previous prime is 722494937. The next prime is 722494961. The reversal of 722494939 is 939494227.

722494939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 722494939 - 2¹ = 722494937 is a prime.

It is a super-2 number, since 2×722494939² = 1043997873761227442, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 722494892 and 722494901.

It is not an unprimeable number, because it can be changed into a prime (722494937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21919 + ... + 43879.

It is an arithmetic number, because the mean of its divisors is an integer number (91317996).

Almost surely, 2^722494939 is an apocalyptic number.

722494939 is a deficient number, since it is larger than the sum of its proper divisors (8049029).

722494939 is a wasteful number, since it uses less digits than its factorization.

722494939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22325.

The product of its digits is 979776, while the sum is 49.

The square root of 722494939 is about 26879.2659684003. The cubic root of 722494939 is about 897.3150179875.

The spelling of 722494939 in words is "seven hundred twenty-two million, four hundred ninety-four thousand, nine hundred thirty-nine".