401879168 has 16 divisors (see below), whose sum is σ = 800618910. Its totient is φ = 200939520.

The previous prime is 401879143. The next prime is 401879183. The reversal of 401879168 is 861978104.

It can be written as a sum of positive squares in only one way, i.e., 359785024 + 42094144 = 18968^2 + 6488^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569713 + ... + 1569968.

Almost surely, 2^401879168 is an apocalyptic number.

It is an amenable number.

401879168 is a deficient number, since it is larger than the sum of its proper divisors (398739742).

401879168 is an equidigital number, since it uses as much as digits as its factorization.

401879168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139695 (or 3139683 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 44.

The square root of 401879168 is about 20046.9241530964. The cubic root of 401879168 is about 737.9583165965.

The spelling of 401879168 in words is "four hundred one million, eight hundred seventy-nine thousand, one hundred sixty-eight".