400056108 has 48 divisors (see below), whose sum is σ = 951941760. Its totient is φ = 130725504.

The previous prime is 400056071. The next prime is 400056109. The reversal of 400056108 is 801650004.

It is not an unprimeable number, because it can be changed into a prime (400056109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386760 + ... + 387792.

It is an arithmetic number, because the mean of its divisors is an integer number (19832120).

Almost surely, 2^400056108 is an apocalyptic number.

It is an amenable number.

400056108 is an abundant number, since it is smaller than the sum of its proper divisors (551885652).

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

400056108 is a wasteful number, since it uses less digits than its factorization.

400056108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1646 (or 1644 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 400056108 is about 20001.4026508143. The cubic root of 400056108 is about 736.8407487240.

The spelling of 400056108 in words is "four hundred million, fifty-six thousand, one hundred eight".