198000504 has 128 divisors (see below), whose sum is σ = 598752000. Its totient is φ = 60262272.

The previous prime is 198000497. The next prime is 198000511. The reversal of 198000504 is 405000891.

It is an interprime number because it is at equal distance from previous prime (198000497) and next prime (198000511).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 300127 + ... + 300785.

It is an arithmetic number, because the mean of its divisors is an integer number (4677750).

Almost surely, 2^198000504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 198000504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299376000).

198000504 is an abundant number, since it is smaller than the sum of its proper divisors (400751496).

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

198000504 is a wasteful number, since it uses less digits than its factorization.

198000504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 198000504 is about 14071.2651883191. The cubic root of 198000504 is about 582.8481628621.

The spelling of 198000504 in words is "one hundred ninety-eight million, five hundred four", and thus it is an aban number.