398882179422 has 48 divisors (see below), whose sum is σ = 884447486208. Its totient is φ = 129853337040.

The previous prime is 398882179417. The next prime is 398882179427. The reversal of 398882179422 is 224971288893.

398882179422 is a `hidden beast` number, since 39 + 8 + 8 + 8 + 2 + 179 + 422 = 666.

It is an interprime number because it is at equal distance from previous prime (398882179417) and next prime (398882179427).

It is a self number, because there is not a number n which added to its sum of digits gives 398882179422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398882179427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7887397 + ... + 7937807.

It is an arithmetic number, because the mean of its divisors is an integer number (18425989296).

Almost surely, 2^398882179422 is an apocalyptic number.

398882179422 is an abundant number, since it is smaller than the sum of its proper divisors (485565306786).

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

398882179422 is a wasteful number, since it uses less digits than its factorization.

398882179422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60685 (or 60682 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The spelling of 398882179422 in words is "three hundred ninety-eight billion, eight hundred eighty-two million, one hundred seventy-nine thousand, four hundred twenty-two".