30198798 has 96 divisors (see below), whose sum is σ = 79535520. Its totient is φ = 8467200.

The previous prime is 30198781. The next prime is 30198799. The reversal of 30198798 is 89789103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30198799) 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, 267190 + ... + 267302.

It is an arithmetic number, because the mean of its divisors is an integer number (828495).

Almost surely, 2^30198798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30198798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39767760).

30198798 is an abundant number, since it is smaller than the sum of its proper divisors (49336722).

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

30198798 is a wasteful number, since it uses less digits than its factorization.

30198798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 30198798 is about 5495.3433013780. The cubic root of 30198798 is about 311.4080863356.

It can be divided in two parts, 301 and 98798, that added together give a palindrome (99099).

The spelling of 30198798 in words is "thirty million, one hundred ninety-eight thousand, seven hundred ninety-eight".