422176213 has 4 divisors (see below), whose sum is σ = 423819180. Its totient is φ = 420533248.

The previous prime is 422176207. The next prime is 422176243. The reversal of 422176213 is 312671224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 336465649 + 85710564 = 18343^2 + 9258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422176213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422176243) 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, 821098 + ... + 821611.

It is an arithmetic number, because the mean of its divisors is an integer number (105954795).

Almost surely, 2^422176213 is an apocalyptic number.

It is an amenable number.

422176213 is a deficient number, since it is larger than the sum of its proper divisors (1642967).

422176213 is a wasteful number, since it uses less digits than its factorization.

422176213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642966.

The product of its digits is 4032, while the sum is 28.

The square root of 422176213 is about 20546.9270938503. The cubic root of 422176213 is about 750.1784541281.

The spelling of 422176213 in words is "four hundred twenty-two million, one hundred seventy-six thousand, two hundred thirteen".