422173212 has 12 divisors (see below), whose sum is σ = 985070856. Its totient is φ = 140724400.

The previous prime is 422173181. The next prime is 422173247. The reversal of 422173212 is 212371224.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17590539 + ... + 17590562.

It is an arithmetic number, because the mean of its divisors is an integer number (82089238).

Almost surely, 2^422173212 is an apocalyptic number.

It is an amenable number.

422173212 is an abundant number, since it is smaller than the sum of its proper divisors (562897644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422173212 is a wasteful number, since it uses less digits than its factorization.

422173212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35181108 (or 35181106 counting only the distinct ones).

The product of its digits is 1344, while the sum is 24.

The square root of 422173212 is about 20546.8540657688. The cubic root of 422173212 is about 750.1766765995.

The spelling of 422173212 in words is "four hundred twenty-two million, one hundred seventy-three thousand, two hundred twelve".