422039 has 4 divisors (see below), whose sum is σ = 430056. Its totient is φ = 414024.

The previous prime is 422029. The next prime is 422041. The reversal of 422039 is 930224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422039 - 2⁸ = 421783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422029) 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, 3929 + ... + 4034.

It is an arithmetic number, because the mean of its divisors is an integer number (107514).

2⁴²²⁰³⁹ is an apocalyptic number.

422039 is a deficient number, since it is larger than the sum of its proper divisors (8017).

422039 is an equidigital number, since it uses as much as digits as its factorization.

422039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8016.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 422039 is about 649.6452878302. The cubic root of 422039 is about 75.0097172595.

The spelling of 422039 in words is "four hundred twenty-two thousand, thirty-nine".