198349836 has 12 divisors (see below), whose sum is σ = 462816312. Its totient is φ = 66116608.

The previous prime is 198349819. The next prime is 198349847. The reversal of 198349836 is 638943891.

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, 8264565 + ... + 8264588.

It is an arithmetic number, because the mean of its divisors is an integer number (38568026).

Almost surely, 2^198349836 is an apocalyptic number.

It is an amenable number.

198349836 is an abundant number, since it is smaller than the sum of its proper divisors (264466476).

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

198349836 is a wasteful number, since it uses less digits than its factorization.

198349836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16529160 (or 16529158 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 51.

The square root of 198349836 is about 14083.6726744127. The cubic root of 198349836 is about 583.1907341958.

The spelling of 198349836 in words is "one hundred ninety-eight million, three hundred forty-nine thousand, eight hundred thirty-six".