422974831 has 4 divisors (see below), whose sum is σ = 437560200. Its totient is φ = 408389464.

The previous prime is 422974823. The next prime is 422974843. The reversal of 422974831 is 138479224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422974831 - 2³ = 422974823 is a prime.

It is a super-2 number, since 2×422974831² = 357815415318957122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422974801) 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, 7292641 + ... + 7292698.

It is an arithmetic number, because the mean of its divisors is an integer number (109390050).

Almost surely, 2^422974831 is an apocalyptic number.

422974831 is a deficient number, since it is larger than the sum of its proper divisors (14585369).

422974831 is a wasteful number, since it uses less digits than its factorization.

422974831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14585368.

The product of its digits is 96768, while the sum is 40.

The square root of 422974831 is about 20566.3519127725. The cubic root of 422974831 is about 750.6511861489.

The spelling of 422974831 in words is "four hundred twenty-two million, nine hundred seventy-four thousand, eight hundred thirty-one".