198120950 has 24 divisors (see below), whose sum is σ = 369070128. Its totient is φ = 79126880.

The previous prime is 198120931. The next prime is 198120973. The reversal of 198120950 is 59021891.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 198120950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34484 + ... + 39816.

It is an arithmetic number, because the mean of its divisors is an integer number (15377922).

Almost surely, 2^198120950 is an apocalyptic number.

198120950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198120950 is a deficient number, since it is larger than the sum of its proper divisors (170949178).

198120950 is a wasteful number, since it uses less digits than its factorization.

198120950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088 (or 6083 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 198120950 is about 14075.5443944453. The cubic root of 198120950 is about 582.9663233354.

The spelling of 198120950 in words is "one hundred ninety-eight million, one hundred twenty thousand, nine hundred fifty".