198402 has 16 divisors (see below), whose sum is σ = 406560. Its totient is φ = 64512.

The previous prime is 198397. The next prime is 198409. The reversal of 198402 is 204891.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198402.

It is not an unprimeable number, because it can be changed into a prime (198409) by changing a digit.

198402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127 + ... + 642.

It is an arithmetic number, because the mean of its divisors is an integer number (25410).

2¹⁹⁸⁴⁰² is an apocalyptic number.

198402 is an abundant number, since it is smaller than the sum of its proper divisors (208158).

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

198402 is a wasteful number, since it uses less digits than its factorization.

198402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 198402 is about 445.4233940870. The cubic root of 198402 is about 58.3241854136.

The spelling of 198402 in words is "one hundred ninety-eight thousand, four hundred two".