400475156 has 24 divisors (see below), whose sum is σ = 722346240. Its totient is φ = 194169312.

The previous prime is 400475107. The next prime is 400475177. The reversal of 400475156 is 651574004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10721 + ... + 30263.

It is an arithmetic number, because the mean of its divisors is an integer number (30097760).

Almost surely, 2^400475156 is an apocalyptic number.

It is an amenable number.

400475156 is a deficient number, since it is larger than the sum of its proper divisors (321871084).

400475156 is a wasteful number, since it uses less digits than its factorization.

400475156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19703 (or 19701 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 400475156 is about 20011.8753743871. The cubic root of 400475156 is about 737.0979325611.

The spelling of 400475156 in words is "four hundred million, four hundred seventy-five thousand, one hundred fifty-six".