198453402 has 40 divisors (see below), whose sum is σ = 508211616. Its totient is φ = 56700648.

The previous prime is 198453391. The next prime is 198453419. The reversal of 198453402 is 204354891.

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 in 19 ways as a sum of consecutive naturals, for example, 86368 + ... + 88635.

Almost surely, 2^198453402 is an apocalyptic number.

198453402 is an abundant number, since it is smaller than the sum of its proper divisors (309758214).

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

198453402 is a wasteful number, since it uses less digits than its factorization.

198453402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175024 (or 175015 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 198453402 is about 14087.3490054020. The cubic root of 198453402 is about 583.2922185625.

The spelling of 198453402 in words is "one hundred ninety-eight million, four hundred fifty-three thousand, four hundred two".