30249198 has 24 divisors (see below), whose sum is σ = 74903088. Its totient is φ = 8642592.

The previous prime is 30249187. The next prime is 30249199. The reversal of 30249198 is 89194203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30249199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 119911 + ... + 120162.

It is an arithmetic number, because the mean of its divisors is an integer number (3120962).

Almost surely, 2^30249198 is an apocalyptic number.

30249198 is an abundant number, since it is smaller than the sum of its proper divisors (44653890).

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

30249198 is a wasteful number, since it uses less digits than its factorization.

30249198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240088 (or 240085 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 30249198 is about 5499.9270904258. The cubic root of 30249198 is about 311.5812305814.

The spelling of 30249198 in words is "thirty million, two hundred forty-nine thousand, one hundred ninety-eight".