198119810 has 64 divisors (see below), whose sum is σ = 417629952. Its totient is φ = 66272256.

The previous prime is 198119807. The next prime is 198119813. The reversal of 198119810 is 18911891.

It is an interprime number because it is at equal distance from previous prime (198119807) and next prime (198119813).

It is a super-2 number, since 2×198119810² = 78502918228872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (198119813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699929 + ... + 700211.

It is an arithmetic number, because the mean of its divisors is an integer number (6525468).

Almost surely, 2^198119810 is an apocalyptic number.

198119810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198119810 is an abundant number, since it is smaller than the sum of its proper divisors (219510142).

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

198119810 is a wasteful number, since it uses less digits than its factorization.

198119810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 5184, while the sum is 38.

The square root of 198119810 is about 14075.5038986176. The cubic root of 198119810 is about 582.9652051921.

The spelling of 198119810 in words is "one hundred ninety-eight million, one hundred nineteen thousand, eight hundred ten".