726731822 has 16 divisors (see below), whose sum is σ = 1164067200. Its totient is φ = 339517920.

The previous prime is 726731783. The next prime is 726731839. The reversal of 726731822 is 228137627.

It is a super-2 number, since 2×726731822² = 1056278282214879368, 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, 200297 + ... + 203892.

It is an arithmetic number, because the mean of its divisors is an integer number (72754200).

Almost surely, 2^726731822 is an apocalyptic number.

726731822 is a deficient number, since it is larger than the sum of its proper divisors (437335378).

726731822 is a wasteful number, since it uses less digits than its factorization.

726731822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404251.

The product of its digits is 56448, while the sum is 38.

The square root of 726731822 is about 26957.9639809834. The cubic root of 726731822 is about 899.0656236857.

The spelling of 726731822 in words is "seven hundred twenty-six million, seven hundred thirty-one thousand, eight hundred twenty-two".