198432502 has 8 divisors (see below), whose sum is σ = 297805536. Its totient is φ = 99163992.

The previous prime is 198432473. The next prime is 198432539. The reversal of 198432502 is 205234891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21198 + ... + 29089.

It is an arithmetic number, because the mean of its divisors is an integer number (37225692).

Almost surely, 2^198432502 is an apocalyptic number.

198432502 is a deficient number, since it is larger than the sum of its proper divisors (99373034).

198432502 is a wasteful number, since it uses less digits than its factorization.

198432502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52262.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 198432502 is about 14086.6071855504. The cubic root of 198432502 is about 583.2717414879.

The spelling of 198432502 in words is "one hundred ninety-eight million, four hundred thirty-two thousand, five hundred two".