198902404 has 12 divisors (see below), whose sum is σ = 348180700. Its totient is φ = 99422208.

The previous prime is 198902401. The next prime is 198902419. The reversal of 198902404 is 404209891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19342404 + 179560000 = 4398^2 + 13400^2 .

It is not an unprimeable number, because it can be changed into a prime (198902401) 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, 17812 + ... + 26740.

Almost surely, 2^198902404 is an apocalyptic number.

It is an amenable number.

198902404 is a deficient number, since it is larger than the sum of its proper divisors (149278296).

198902404 is a wasteful number, since it uses less digits than its factorization.

198902404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14502 (or 14500 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 198902404 is about 14103.2763569321. The cubic root of 198902404 is about 583.7317879218.

The spelling of 198902404 in words is "one hundred ninety-eight million, nine hundred two thousand, four hundred four".