198329402 has 4 divisors (see below), whose sum is σ = 297494106. Its totient is φ = 99164700.

The previous prime is 198329389. The next prime is 198329419. The reversal of 198329402 is 204923891.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 117527281 + 80802121 = 10841^2 + 8989^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 49582349 + ... + 49582352.

Almost surely, 2^198329402 is an apocalyptic number.

198329402 is a deficient number, since it is larger than the sum of its proper divisors (99164704).

198329402 is an equidigital number, since it uses as much as digits as its factorization.

198329402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99164703.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 198329402 is about 14082.9472057521. The cubic root of 198329402 is about 583.1707067384.

The spelling of 198329402 in words is "one hundred ninety-eight million, three hundred twenty-nine thousand, four hundred two".