422339638 has 16 divisors (see below), whose sum is σ = 762117120. Its totient is φ = 171476136.

The previous prime is 422339623. The next prime is 422339663. The reversal of 422339638 is 836933224.

It is a self number, because there is not a number n which added to its sum of digits gives 422339638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 793606 + ... + 794137.

It is an arithmetic number, because the mean of its divisors is an integer number (47632320).

Almost surely, 2^422339638 is an apocalyptic number.

422339638 is a deficient number, since it is larger than the sum of its proper divisors (339777482).

422339638 is a wasteful number, since it uses less digits than its factorization.

422339638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1587771.

The product of its digits is 186624, while the sum is 40.

The square root of 422339638 is about 20550.9035811081. The cubic root of 422339638 is about 750.2752400153.

The spelling of 422339638 in words is "four hundred twenty-two million, three hundred thirty-nine thousand, six hundred thirty-eight".