198481500 has 144 divisors (see below), whose sum is σ = 715705536. Its totient is φ = 45360000.

The previous prime is 198481489. The next prime is 198481501. The reversal of 198481500 is 5184891.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198481501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28350 + ... + 34650.

Almost surely, 2^198481500 is an apocalyptic number.

198481500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198481500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357852768).

198481500 is an abundant number, since it is smaller than the sum of its proper divisors (517224036).

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

198481500 is a wasteful number, since it uses less digits than its factorization.

198481500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 198481500 is about 14088.3462478745. The cubic root of 198481500 is about 583.3197457153.

The spelling of 198481500 in words is "one hundred ninety-eight million, four hundred eighty-one thousand, five hundred".