399881104 has 40 divisors (see below), whose sum is σ = 886603968. Its totient is φ = 171154560.

The previous prime is 399881101. The next prime is 399881113. The reversal of 399881104 is 401188993.

It is not an unprimeable number, because it can be changed into a prime (399881101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106914 + ... + 110590.

Almost surely, 2^399881104 is an apocalyptic number.

It is an amenable number.

399881104 is an abundant number, since it is smaller than the sum of its proper divisors (486722864).

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

399881104 is a wasteful number, since it uses less digits than its factorization.

399881104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4663 (or 4657 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 399881104 is about 19997.0273790881. The cubic root of 399881104 is about 736.7332897256.

The spelling of 399881104 in words is "three hundred ninety-nine million, eight hundred eighty-one thousand, one hundred four".