722427926 has 16 divisors (see below), whose sum is σ = 1182876048. Its totient is φ = 328176000.

The previous prime is 722427887. The next prime is 722427947. The reversal of 722427926 is 629724227.

It is a super-2 number, since 2×722427926² = 1043804216529322952, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30506 + ... + 48738.

It is an arithmetic number, because the mean of its divisors is an integer number (73929753).

Almost surely, 2^722427926 is an apocalyptic number.

722427926 is a deficient number, since it is larger than the sum of its proper divisors (460448122).

722427926 is a wasteful number, since it uses less digits than its factorization.

722427926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20047.

The product of its digits is 169344, while the sum is 41.

The square root of 722427926 is about 26878.0193838757. The cubic root of 722427926 is about 897.2872744804.

The spelling of 722427926 in words is "seven hundred twenty-two million, four hundred twenty-seven thousand, nine hundred twenty-six".