422842 has 8 divisors (see below), whose sum is σ = 724896. Its totient is φ = 181212.

The previous prime is 422827. The next prime is 422857. The reversal of 422842 is 248224.

It is an interprime number because it is at equal distance from previous prime (422827) and next prime (422857).

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15088 + ... + 15115.

It is an arithmetic number, because the mean of its divisors is an integer number (90612).

2⁴²²⁸⁴² is an apocalyptic number.

422842 is a deficient number, since it is larger than the sum of its proper divisors (302054).

422842 is a wasteful number, since it uses less digits than its factorization.

422842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30212.

The product of its digits is 1024, while the sum is 22.

The square root of 422842 is about 650.2630237066. The cubic root of 422842 is about 75.0572599765.

The spelling of 422842 in words is "four hundred twenty-two thousand, eight hundred forty-two".