198118264 has 8 divisors (see below), whose sum is σ = 371471760. Its totient is φ = 99059128.

The previous prime is 198118259. The next prime is 198118307. The reversal of 198118264 is 462811891.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12382384 + ... + 12382399.

It is an arithmetic number, because the mean of its divisors is an integer number (46433970).

Almost surely, 2^198118264 is an apocalyptic number.

It is an amenable number.

198118264 is a deficient number, since it is larger than the sum of its proper divisors (173353496).

198118264 is a wasteful number, since it uses less digits than its factorization.

198118264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24764789 (or 24764785 counting only the distinct ones).

The product of its digits is 27648, while the sum is 40.

The square root of 198118264 is about 14075.4489804056. The cubic root of 198118264 is about 582.9636888259.

The spelling of 198118264 in words is "one hundred ninety-eight million, one hundred eighteen thousand, two hundred sixty-four".