30030198 has 16 divisors (see below), whose sum is σ = 65520576. Its totient is φ = 9100040.

The previous prime is 30030181. The next prime is 30030269. The reversal of 30030198 is 89103003.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

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, 227436 + ... + 227567.

It is an arithmetic number, because the mean of its divisors is an integer number (4095036).

Almost surely, 2^30030198 is an apocalyptic number.

30030198 is an abundant number, since it is smaller than the sum of its proper divisors (35490378).

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

30030198 is a wasteful number, since it uses less digits than its factorization.

30030198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455019.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 30030198 is about 5479.9815693121. The cubic root of 30030198 is about 310.8274736409.

The spelling of 30030198 in words is "thirty million, thirty thousand, one hundred ninety-eight".