198481698 has 32 divisors (see below), whose sum is σ = 467017920. Its totient is φ = 62268480.

The previous prime is 198481693. The next prime is 198481729. The reversal of 198481698 is 896184891.

198481698 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (198481693) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107188 + ... + 109023.

It is an arithmetic number, because the mean of its divisors is an integer number (14594310).

Almost surely, 2^198481698 is an apocalyptic number.

198481698 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

198481698 is an abundant number, since it is smaller than the sum of its proper divisors (268536222).

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

198481698 is a wasteful number, since it uses less digits than its factorization.

198481698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216239 (or 216233 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 198481698 is about 14088.3532749573. The cubic root of 198481698 is about 583.3199396834.

The spelling of 198481698 in words is "one hundred ninety-eight million, four hundred eighty-one thousand, six hundred ninety-eight".