422635 has 8 divisors (see below), whose sum is σ = 511056. Its totient is φ = 335520.

The previous prime is 422627. The next prime is 422657. The reversal of 422635 is 536224.

It is a happy number.

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

It is not a de Polignac number, because 422635 - 2³ = 422627 is a prime.

It is a Duffinian number.

422635 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 672 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (63882).

2⁴²²⁶³⁵ is an apocalyptic number.

422635 is a deficient number, since it is larger than the sum of its proper divisors (88421).

422635 is a wasteful number, since it uses less digits than its factorization.

422635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653.

The product of its digits is 1440, while the sum is 22.

The square root of 422635 is about 650.1038378598. The cubic root of 422635 is about 75.0450100196.

Adding to 422635 its reverse (536224), we get a palindrome (958859).

The spelling of 422635 in words is "four hundred twenty-two thousand, six hundred thirty-five".