408668876 has 48 divisors (see below), whose sum is σ = 930424320. Its totient is φ = 152296320.

The previous prime is 408668851. The next prime is 408668881. The reversal of 408668876 is 678866804.

It is a happy number.

It is a super-2 number, since 2×408668876² = 334020500422206752, which contains 22 as substring.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21761 + ... + 35928.

It is an arithmetic number, because the mean of its divisors is an integer number (19383840).

Almost surely, 2^408668876 is an apocalyptic number.

408668876 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

408668876 is an abundant number, since it is smaller than the sum of its proper divisors (521755444).

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

408668876 is a wasteful number, since it uses less digits than its factorization.

408668876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57734 (or 57732 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 53.

The square root of 408668876 is about 20215.5602445245. The cubic root of 408668876 is about 742.0910397033.

The spelling of 408668876 in words is "four hundred eight million, six hundred sixty-eight thousand, eight hundred seventy-six".