400921476 has 12 divisors (see below), whose sum is σ = 935483472. Its totient is φ = 133640488.

The previous prime is 400921429. The next prime is 400921513. The reversal of 400921476 is 674129004.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16705050 + ... + 16705073.

It is an arithmetic number, because the mean of its divisors is an integer number (77956956).

Almost surely, 2^400921476 is an apocalyptic number.

It is an amenable number.

400921476 is an abundant number, since it is smaller than the sum of its proper divisors (534561996).

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

400921476 is a wasteful number, since it uses less digits than its factorization.

400921476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33410130 (or 33410128 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 400921476 is about 20023.0236477911. The cubic root of 400921476 is about 737.3716569157.

The spelling of 400921476 in words is "four hundred million, nine hundred twenty-one thousand, four hundred seventy-six".