198902403 has 12 divisors (see below), whose sum is σ = 328346928. Its totient is φ = 113658480.

The previous prime is 198902401. The next prime is 198902419. The reversal of 198902403 is 304209891.

It is not a de Polignac number, because 198902403 - 2¹ = 198902401 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (198902401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1578528 + ... + 1578653.

It is an arithmetic number, because the mean of its divisors is an integer number (27362244).

Almost surely, 2^198902403 is an apocalyptic number.

198902403 is a deficient number, since it is larger than the sum of its proper divisors (129444525).

198902403 is a wasteful number, since it uses less digits than its factorization.

198902403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3157194 (or 3157191 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 198902403 is about 14103.2763214793. The cubic root of 198902403 is about 583.7317869436.

The spelling of 198902403 in words is "one hundred ninety-eight million, nine hundred two thousand, four hundred three".