198363860 has 24 divisors (see below), whose sum is σ = 417240936. Its totient is φ = 79216640.

The previous prime is 198363793. The next prime is 198363877. The reversal of 198363860 is 68363891.

It can be written as a sum of positive squares in 4 ways, for example, as 48497296 + 149866564 = 6964^2 + 12242^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5084 + ... + 20556.

It is an arithmetic number, because the mean of its divisors is an integer number (17385039).

Almost surely, 2^198363860 is an apocalyptic number.

198363860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198363860 is an abundant number, since it is smaller than the sum of its proper divisors (218877076).

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

198363860 is a wasteful number, since it uses less digits than its factorization.

198363860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16123 (or 16121 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 198363860 is about 14084.1705471071. The cubic root of 198363860 is about 583.2044783869.

The spelling of 198363860 in words is "one hundred ninety-eight million, three hundred sixty-three thousand, eight hundred sixty".