422726431 has 4 divisors (see below), whose sum is σ = 422767864. Its totient is φ = 422685000.

The previous prime is 422726411. The next prime is 422726467. The reversal of 422726431 is 134627224.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 422726431 - 2⁷ = 422726303 is a prime.

It is a super-2 number, since 2×422726431² = 357395270931995522, 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 = 422726393 and 422726402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422726411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6556 + ... + 29806.

It is an arithmetic number, because the mean of its divisors is an integer number (105691966).

Almost surely, 2^422726431 is an apocalyptic number.

422726431 is a deficient number, since it is larger than the sum of its proper divisors (41433).

422726431 is a wasteful number, since it uses less digits than its factorization.

422726431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41432.

The product of its digits is 16128, while the sum is 31.

The square root of 422726431 is about 20560.3120355699. The cubic root of 422726431 is about 750.5042126539.

The spelling of 422726431 in words is "four hundred twenty-two million, seven hundred twenty-six thousand, four hundred thirty-one".