198039804 has 12 divisors (see below), whose sum is σ = 462092904. Its totient is φ = 66013264.

The previous prime is 198039791. The next prime is 198039857. The reversal of 198039804 is 408930891.

It is a tau number, because it is divible by the number of its divisors (12).

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, 8251647 + ... + 8251670.

It is an arithmetic number, because the mean of its divisors is an integer number (38507742).

Almost surely, 2^198039804 is an apocalyptic number.

It is an amenable number.

198039804 is an abundant number, since it is smaller than the sum of its proper divisors (264053100).

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

198039804 is a wasteful number, since it uses less digits than its factorization.

198039804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16503324 (or 16503322 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 198039804 is about 14072.6615819467. The cubic root of 198039804 is about 582.8867223894.

The spelling of 198039804 in words is "one hundred ninety-eight million, thirty-nine thousand, eight hundred four".