30298220 has 12 divisors (see below), whose sum is σ = 63626304. Its totient is φ = 12119280.

The previous prime is 30298207. The next prime is 30298249. The reversal of 30298220 is 2289203.

It is a self number, because there is not a number n which added to its sum of digits gives 30298220.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 757436 + ... + 757475.

It is an arithmetic number, because the mean of its divisors is an integer number (5302192).

Almost surely, 2^30298220 is an apocalyptic number.

It is an amenable number.

30298220 is an abundant number, since it is smaller than the sum of its proper divisors (33328084).

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

30298220 is a wasteful number, since it uses less digits than its factorization.

30298220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514920 (or 1514918 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 30298220 is about 5504.3818908212. The cubic root of 30298220 is about 311.7494564331.

The spelling of 30298220 in words is "thirty million, two hundred ninety-eight thousand, two hundred twenty".