422870 has 24 divisors (see below), whose sum is σ = 886464. Its totient is φ = 144816.

The previous prime is 422869. The next prime is 422879. The reversal of 422870 is 78224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422879) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (36936).

2⁴²²⁸⁷⁰ is an apocalyptic number.

422870 is an abundant number, since it is smaller than the sum of its proper divisors (463594).

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

422870 is a wasteful number, since it uses less digits than its factorization.

422870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 422870 is about 650.2845530996. The cubic root of 422870 is about 75.0589166685.

The spelling of 422870 in words is "four hundred twenty-two thousand, eight hundred seventy".