400088488 has 16 divisors (see below), whose sum is σ = 750996000. Its totient is φ = 199822896.

The previous prime is 400088471. The next prime is 400088497. The reversal of 400088488 is 884880004.

It is a super-2 number, since 2×400088488² = 320141596460252288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400088488.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 19858 + ... + 34561.

It is an arithmetic number, because the mean of its divisors is an integer number (46937250).

Almost surely, 2^400088488 is an apocalyptic number.

It is an amenable number.

400088488 is a deficient number, since it is larger than the sum of its proper divisors (350907512).

400088488 is a wasteful number, since it uses less digits than its factorization.

400088488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55344 (or 55340 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 40.

The square root of 400088488 is about 20002.2120776678. The cubic root of 400088488 is about 736.8606278187.

The spelling of 400088488 in words is "four hundred million, eighty-eight thousand, four hundred eighty-eight".