402220198 has 8 divisors (see below), whose sum is σ = 624134880. Its totient is φ = 194175240.

The previous prime is 402220171. The next prime is 402220207. The reversal of 402220198 is 891022204.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3467358 + ... + 3467473.

It is an arithmetic number, because the mean of its divisors is an integer number (78016860).

Almost surely, 2^402220198 is an apocalyptic number.

402220198 is a deficient number, since it is larger than the sum of its proper divisors (221914682).

402220198 is a wasteful number, since it uses less digits than its factorization.

402220198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6934862.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 402220198 is about 20055.4281430240. The cubic root of 402220198 is about 738.1669985349.

The spelling of 402220198 in words is "four hundred two million, two hundred twenty thousand, one hundred ninety-eight".