400198856 has 16 divisors (see below), whose sum is σ = 751820940. Its totient is φ = 199713280.

The previous prime is 400198849. The next prime is 400198861. The reversal of 400198856 is 658891004.

It can be written as a sum of positive squares in 2 ways, for example, as 344696356 + 55502500 = 18566^2 + 7450^2 .

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, 43841 + ... + 52176.

Almost surely, 2^400198856 is an apocalyptic number.

It is an amenable number.

400198856 is a deficient number, since it is larger than the sum of its proper divisors (351622084).

400198856 is a wasteful number, since it uses less digits than its factorization.

400198856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96544 (or 96540 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 400198856 is about 20004.9707822831. The cubic root of 400198856 is about 736.9283781282.

The spelling of 400198856 in words is "four hundred million, one hundred ninety-eight thousand, eight hundred fifty-six".