198439000 has 32 divisors (see below), whose sum is σ = 464349600. Its totient is φ = 79375200.

The previous prime is 198438991. The next prime is 198439013. The reversal of 198439000 is 934891.

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, 98220 + ... + 100219.

It is an arithmetic number, because the mean of its divisors is an integer number (14510925).

Almost surely, 2^198439000 is an apocalyptic number.

198439000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198439000 is an abundant number, since it is smaller than the sum of its proper divisors (265910600).

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

198439000 is a wasteful number, since it uses less digits than its factorization.

198439000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198460 (or 198446 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 198439000 is about 14086.8378282708. The cubic root of 198439000 is about 583.2781081506.

The spelling of 198439000 in words is "one hundred ninety-eight million, four hundred thirty-nine thousand".