399198004 has 12 divisors (see below), whose sum is σ = 700000000. Its totient is φ = 199198008.

The previous prime is 399197989. The next prime is 399198013. The reversal of 399198004 is 400891993.

It is a congruent 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, 98004 + ... + 101995.

Almost surely, 2^399198004 is an apocalyptic number.

It is an amenable number.

399198004 is a deficient number, since it is larger than the sum of its proper divisors (300801996).

399198004 is a wasteful number, since it uses less digits than its factorization.

399198004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200502 (or 200500 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 43.

The square root of 399198004 is about 19979.9400399501. The cubic root of 399198004 is about 736.3135405011.

The spelling of 399198004 in words is "three hundred ninety-nine million, one hundred ninety-eight thousand, four".