400898888 has 16 divisors (see below), whose sum is σ = 809507580. Its totient is φ = 185030208.

The previous prime is 400898863. The next prime is 400898899. The reversal of 400898888 is 888898004.

It can be written as a sum of positive squares in 2 ways, for example, as 387223684 + 13675204 = 19678^2 + 3698^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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, 1927295 + ... + 1927502.

Almost surely, 2^400898888 is an apocalyptic number.

It is an amenable number.

400898888 is an abundant number, since it is smaller than the sum of its proper divisors (408608692).

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

400898888 is a wasteful number, since it uses less digits than its factorization.

400898888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854816 (or 3854812 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 53.

The square root of 400898888 is about 20022.4595891714. The cubic root of 400898888 is about 737.3578087644.

The spelling of 400898888 in words is "four hundred million, eight hundred ninety-eight thousand, eight hundred eighty-eight".