422238931 has 4 divisors (see below), whose sum is σ = 433650832. Its totient is φ = 410827032.

The previous prime is 422238913. The next prime is 422238953. The reversal of 422238931 is 139832224.

It is a happy number.

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 422238931 - 2⁹ = 422238419 is a prime.

It is a super-2 number, since 2×422238931² = 356571429704045522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422238031) 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, 5705895 + ... + 5705968.

It is an arithmetic number, because the mean of its divisors is an integer number (108412708).

Almost surely, 2^422238931 is an apocalyptic number.

422238931 is a deficient number, since it is larger than the sum of its proper divisors (11411901).

422238931 is a wasteful number, since it uses less digits than its factorization.

422238931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11411900.

The product of its digits is 20736, while the sum is 34.

The square root of 422238931 is about 20548.4532507924. The cubic root of 422238931 is about 750.2156008306.

The spelling of 422238931 in words is "four hundred twenty-two million, two hundred thirty-eight thousand, nine hundred thirty-one".