422165331 has 24 divisors (see below), whose sum is σ = 727543440. Its totient is φ = 241236576.

The previous prime is 422165329. The next prime is 422165371. The reversal of 422165331 is 133561224.

422165331 is a `hidden beast` number, since 4 + 2 + 2 + 1 + 653 + 3 + 1 = 666.

It is not a de Polignac number, because 422165331 - 2¹ = 422165329 is a prime.

It is a super-2 number, since 2×422165331² = 356447133396679122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 422165295 and 422165304.

It is not an unprimeable number, because it can be changed into a prime (422165371) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158226 + ... + 160871.

It is an arithmetic number, because the mean of its divisors is an integer number (30314310).

Almost surely, 2^422165331 is an apocalyptic number.

422165331 is a deficient number, since it is larger than the sum of its proper divisors (305378109).

422165331 is a wasteful number, since it uses less digits than its factorization.

422165331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319120 (or 319107 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 422165331 is about 20546.6622836898. The cubic root of 422165331 is about 750.1720085477.

The spelling of 422165331 in words is "four hundred twenty-two million, one hundred sixty-five thousand, three hundred thirty-one".