400986884 has 12 divisors (see below), whose sum is σ = 703358208. Its totient is φ = 200027400.

The previous prime is 400986877. The next prime is 400986889. The reversal of 400986884 is 488689004.

It is a super-2 number, since 2×400986884² = 321580962280058912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (400986889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114572 + ... + 118019.

It is an arithmetic number, because the mean of its divisors is an integer number (58613184).

Almost surely, 2^400986884 is an apocalyptic number.

It is an amenable number.

400986884 is a deficient number, since it is larger than the sum of its proper divisors (302371324).

400986884 is a wasteful number, since it uses less digits than its factorization.

400986884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233026 (or 233024 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 400986884 is about 20024.6569009309. The cubic root of 400986884 is about 737.4117540300.

The spelling of 400986884 in words is "four hundred million, nine hundred eighty-six thousand, eight hundred eighty-four".