198979110 has 48 divisors (see below), whose sum is σ = 564379920. Its totient is φ = 48237120.

The previous prime is 198979091. The next prime is 198979129. The reversal of 198979110 is 11979891.

It is an interprime number because it is at equal distance from previous prime (198979091) and next prime (198979129).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 99505 + ... + 101484.

It is an arithmetic number, because the mean of its divisors is an integer number (11757915).

Almost surely, 2^198979110 is an apocalyptic number.

198979110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198979110 is an abundant number, since it is smaller than the sum of its proper divisors (365400810).

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

198979110 is a wasteful number, since it uses less digits than its factorization.

198979110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201013 (or 201010 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 45.

The square root of 198979110 is about 14105.9955338147. The cubic root of 198979110 is about 583.8068163026.

The spelling of 198979110 in words is "one hundred ninety-eight million, nine hundred seventy-nine thousand, one hundred ten".