422090 has 8 divisors (see below), whose sum is σ = 759780. Its totient is φ = 168832.

The previous prime is 422089. The next prime is 422099. The reversal of 422090 is 90224.

It can be written as a sum of positive squares in 2 ways, for example, as 418609 + 3481 = 647^2 + 59^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (422099) 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, 21095 + ... + 21114.

2⁴²²⁰⁹⁰ is an apocalyptic number.

422090 is a deficient number, since it is larger than the sum of its proper divisors (337690).

422090 is a wasteful number, since it uses less digits than its factorization.

422090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42216.

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

The square root of 422090 is about 649.6845388340. The cubic root of 422090 is about 75.0127385770.

The spelling of 422090 in words is "four hundred twenty-two thousand, ninety".