422670 has 32 divisors (see below), whose sum is σ = 1033632. Its totient is φ = 110592.

The previous prime is 422657. The next prime is 422689. The reversal of 422670 is 76224.

It is a happy number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 422670.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2094 + ... + 2286.

It is an arithmetic number, because the mean of its divisors is an integer number (32301).

2⁴²²⁶⁷⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516816).

422670 is an abundant number, since it is smaller than the sum of its proper divisors (610962).

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

422670 is a wasteful number, since it uses less digits than its factorization.

422670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 422670 is about 650.1307560791. The cubic root of 422670 is about 75.0470815493.

Adding to 422670 its reverse (76224), we get a palindrome (498894).

The spelling of 422670 in words is "four hundred twenty-two thousand, six hundred seventy".