722496642 has 32 divisors (see below), whose sum is σ = 1654858752. Its totient is φ = 205997904.

The previous prime is 722496601. The next prime is 722496653. The reversal of 722496642 is 246694227.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 722496594 and 722496603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793 + ... + 38115.

It is an arithmetic number, because the mean of its divisors is an integer number (51714336).

Almost surely, 2^722496642 is an apocalyptic number.

722496642 is an abundant number, since it is smaller than the sum of its proper divisors (932362110).

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

722496642 is a wasteful number, since it uses less digits than its factorization.

722496642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35822.

The product of its digits is 290304, while the sum is 42.

The square root of 722496642 is about 26879.2976470740. The cubic root of 722496642 is about 897.3157230104.

The spelling of 722496642 in words is "seven hundred twenty-two million, four hundred ninety-six thousand, six hundred forty-two".