198436236 has 12 divisors (see below), whose sum is σ = 463017912. Its totient is φ = 66145408.

The previous prime is 198436219. The next prime is 198436283. The reversal of 198436236 is 632634891.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8268165 + ... + 8268188.

It is an arithmetic number, because the mean of its divisors is an integer number (38584826).

Almost surely, 2^198436236 is an apocalyptic number.

It is an amenable number.

198436236 is an abundant number, since it is smaller than the sum of its proper divisors (264581676).

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

198436236 is a wasteful number, since it uses less digits than its factorization.

198436236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16536360 (or 16536358 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 198436236 is about 14086.7397221642. The cubic root of 198436236 is about 583.2754000334.

The spelling of 198436236 in words is "one hundred ninety-eight million, four hundred thirty-six thousand, two hundred thirty-six".