422900 has 18 divisors (see below), whose sum is σ = 917910. Its totient is φ = 169120.

The previous prime is 422899. The next prime is 422911. The reversal of 422900 is 9224.

It can be written as a sum of positive squares in 3 ways, for example, as 139876 + 283024 = 374^2 + 532^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2015 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (50995).

2⁴²²⁹⁰⁰ is an apocalyptic number.

It is an amenable number.

422900 is an abundant number, since it is smaller than the sum of its proper divisors (495010).

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

422900 is a wasteful number, since it uses less digits than its factorization.

422900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4243 (or 4236 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 422900 is about 650.3076195156. The cubic root of 422900 is about 75.0606916145.

The spelling of 422900 in words is "four hundred twenty-two thousand, nine hundred".