722262431 has 12 divisors (see below), whose sum is σ = 803467896. Its totient is φ = 648682320.

The previous prime is 722262419. The next prime is 722262433. The reversal of 722262431 is 134262227.

It is a de Polignac number, because none of the positive numbers 2^k-722262431 is a prime.

It is a super-2 number, since 2×722262431² = 1043326038468059522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 722262394 and 722262403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722262433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25916 + ... + 46001.

It is an arithmetic number, because the mean of its divisors is an integer number (66955658).

Almost surely, 2^722262431 is an apocalyptic number.

722262431 is a deficient number, since it is larger than the sum of its proper divisors (81205465).

722262431 is a wasteful number, since it uses less digits than its factorization.

722262431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72022 (or 72011 counting only the distinct ones).

The product of its digits is 8064, while the sum is 29.

The square root of 722262431 is about 26874.9405766785. The cubic root of 722262431 is about 897.2187518902.

The spelling of 722262431 in words is "seven hundred twenty-two million, two hundred sixty-two thousand, four hundred thirty-one".