399383884 has 12 divisors (see below), whose sum is σ = 699791400. Its totient is φ = 199443488.

The previous prime is 399383869. The next prime is 399383893. The reversal of 399383884 is 488383993.

It is a happy number.

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, 58474 + ... + 64945.

It is an arithmetic number, because the mean of its divisors is an integer number (58315950).

Almost surely, 2^399383884 is an apocalyptic number.

It is an amenable number.

399383884 is a deficient number, since it is larger than the sum of its proper divisors (300407516).

399383884 is a wasteful number, since it uses less digits than its factorization.

399383884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124232 (or 124230 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 55.

The square root of 399383884 is about 19984.5911641945. The cubic root of 399383884 is about 736.4278068735.

The spelling of 399383884 in words is "three hundred ninety-nine million, three hundred eighty-three thousand, eight hundred eighty-four".