422156 has 12 divisors (see below), whose sum is σ = 844368. Its totient is φ = 180912.

The previous prime is 422141. The next prime is 422183. The reversal of 422156 is 651224.

It is a happy number.

422156 is an admirable 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, 7511 + ... + 7566.

It is an arithmetic number, because the mean of its divisors is an integer number (70364).

2⁴²²¹⁵⁶ is an apocalyptic number.

It is an amenable number.

422156 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

422156 is a wasteful number, since it uses less digits than its factorization.

422156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15088 (or 15086 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 422156 is about 649.7353307309. The cubic root of 422156 is about 75.0166481561.

The spelling of 422156 in words is "four hundred twenty-two thousand, one hundred fifty-six".