400130856 has 48 divisors (see below), whose sum is σ = 1085722560. Its totient is φ = 133126560.

The previous prime is 400130851. The next prime is 400130869. The reversal of 400130856 is 658031004.

It is not an unprimeable number, because it can be changed into a prime (400130851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35601 + ... + 45471.

It is an arithmetic number, because the mean of its divisors is an integer number (22619220).

Almost surely, 2^400130856 is an apocalyptic number.

It is an amenable number.

400130856 is an abundant number, since it is smaller than the sum of its proper divisors (685591704).

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

400130856 is a wasteful number, since it uses less digits than its factorization.

400130856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10446 (or 10439 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 400130856 is about 20003.2711324923. The cubic root of 400130856 is about 736.8866372391.

The spelling of 400130856 in words is "four hundred million, one hundred thirty thousand, eight hundred fifty-six".