400476668 has 6 divisors (see below), whose sum is σ = 700834176. Its totient is φ = 200238332.

The previous prime is 400476649. The next prime is 400476677. The reversal of 400476668 is 866674004.

It is a super-2 number, since 2×400476668² = 320763123224764448, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50059580 + ... + 50059587.

It is an arithmetic number, because the mean of its divisors is an integer number (116805696).

Almost surely, 2^400476668 is an apocalyptic number.

It is an amenable number.

400476668 is a deficient number, since it is larger than the sum of its proper divisors (300357508).

400476668 is a wasteful number, since it uses less digits than its factorization.

400476668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100119171 (or 100119169 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 400476668 is about 20011.9131519203. The cubic root of 400476668 is about 737.0988602014.

The spelling of 400476668 in words is "four hundred million, four hundred seventy-six thousand, six hundred sixty-eight".