30198428 has 24 divisors (see below), whose sum is σ = 57508752. Its totient is φ = 13791744.

The previous prime is 30198419. The next prime is 30198439. The reversal of 30198428 is 82489103.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2051 + ... + 8037.

It is an arithmetic number, because the mean of its divisors is an integer number (2396198).

Almost surely, 2^30198428 is an apocalyptic number.

It is an amenable number.

30198428 is a deficient number, since it is larger than the sum of its proper divisors (27310324).

30198428 is a wasteful number, since it uses less digits than its factorization.

30198428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6101 (or 6099 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 30198428 is about 5495.3096364081. The cubic root of 30198428 is about 311.4068145249.

The spelling of 30198428 in words is "thirty million, one hundred ninety-eight thousand, four hundred twenty-eight".