198213030 has 96 divisors (see below), whose sum is σ = 548705664. Its totient is φ = 49471488.

The previous prime is 198213023. The next prime is 198213079. The reversal of 198213030 is 30312891.

It is a junction number, because it is equal to n+sod(n) for n = 198212985 and 198213003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 539907 + ... + 540273.

It is an arithmetic number, because the mean of its divisors is an integer number (5715684).

Almost surely, 2^198213030 is an apocalyptic number.

198213030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 198213030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274352832).

198213030 is an abundant number, since it is smaller than the sum of its proper divisors (350492634).

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

198213030 is a wasteful number, since it uses less digits than its factorization.

198213030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 198213030 is about 14078.8149359241. The cubic root of 198213030 is about 583.0566237724.

The spelling of 198213030 in words is "one hundred ninety-eight million, two hundred thirteen thousand, thirty".