30198748 has 6 divisors (see below), whose sum is σ = 52847816. Its totient is φ = 15099372.

The previous prime is 30198731. The next prime is 30198781. The reversal of 30198748 is 84789103.

It is a self number, because there is not a number n which added to its sum of digits gives 30198748.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3774840 + ... + 3774847.

Almost surely, 2^30198748 is an apocalyptic number.

It is an amenable number.

30198748 is a deficient number, since it is larger than the sum of its proper divisors (22649068).

30198748 is a wasteful number, since it uses less digits than its factorization.

30198748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549691 (or 7549689 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 30198748 is about 5495.3387520698. The cubic root of 30198748 is about 311.4079144699.

The spelling of 30198748 in words is "thirty million, one hundred ninety-eight thousand, seven hundred forty-eight".