198009330 has 32 divisors (see below), whose sum is σ = 476233344. Its totient is φ = 52690176.

The previous prime is 198009299. The next prime is 198009337. The reversal of 198009330 is 33900891.

It is a junction number, because it is equal to n+sod(n) for n = 198009291 and 198009300.

It is not an unprimeable number, because it can be changed into a prime (198009337) 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, 7834 + ... + 21386.

It is an arithmetic number, because the mean of its divisors is an integer number (14882292).

Almost surely, 2^198009330 is an apocalyptic number.

198009330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

198009330 is an abundant number, since it is smaller than the sum of its proper divisors (278224014).

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

198009330 is a wasteful number, since it uses less digits than its factorization.

198009330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14050.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 198009330 is about 14071.5788026788. The cubic root of 198009330 is about 582.8568230109.

The spelling of 198009330 in words is "one hundred ninety-eight million, nine thousand, three hundred thirty".