422858388 has 24 divisors (see below), whose sum is σ = 1009616608. Its totient is φ = 137674656.

The previous prime is 422858377. The next prime is 422858399. The reversal of 422858388 is 883858224.

It is an interprime number because it is at equal distance from previous prime (422858377) and next prime (422858399).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

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, 409231 + ... + 410262.

Almost surely, 2^422858388 is an apocalyptic number.

It is an amenable number.

422858388 is an abundant number, since it is smaller than the sum of its proper divisors (586758220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422858388 is a wasteful number, since it uses less digits than its factorization.

422858388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819543 (or 819541 counting only the distinct ones).

The product of its digits is 983040, while the sum is 48.

The square root of 422858388 is about 20563.5208074882. The cubic root of 422858388 is about 750.5822962356.

The spelling of 422858388 in words is "four hundred twenty-two million, eight hundred fifty-eight thousand, three hundred eighty-eight".