401998170 has 64 divisors (see below), whose sum is σ = 1104353280. Its totient is φ = 91741248.

The previous prime is 401998169. The next prime is 401998187. The reversal of 401998170 is 71899104.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 191949 + ... + 194031.

It is an arithmetic number, because the mean of its divisors is an integer number (17255520).

Almost surely, 2^401998170 is an apocalyptic number.

401998170 is an abundant number, since it is smaller than the sum of its proper divisors (702355110).

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

401998170 is a wasteful number, since it uses less digits than its factorization.

401998170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 401998170 is about 20049.8920196594. The cubic root of 401998170 is about 738.0311493084.

The spelling of 401998170 in words is "four hundred one million, nine hundred ninety-eight thousand, one hundred seventy".