30503198 has 24 divisors (see below), whose sum is σ = 52198776. Its totient is φ = 13257200.

The previous prime is 30503197. The next prime is 30503251. The reversal of 30503198 is 89130503.

It is a self number, because there is not a number n which added to its sum of digits gives 30503198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30503197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10328 + ... + 12948.

It is an arithmetic number, because the mean of its divisors is an integer number (2174949).

Almost surely, 2^30503198 is an apocalyptic number.

30503198 is a deficient number, since it is larger than the sum of its proper divisors (21695578).

30503198 is a wasteful number, since it uses less digits than its factorization.

30503198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680 (or 2657 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 30503198 is about 5522.9700343203. The cubic root of 30503198 is about 312.4509081284.

The spelling of 30503198 in words is "thirty million, five hundred three thousand, one hundred ninety-eight".