30250028 has 12 divisors (see below), whose sum is σ = 53058600. Its totient is φ = 15090432.

The previous prime is 30250009. The next prime is 30250039. The reversal of 30250028 is 82005203.

It is a junction number, because it is equal to n+sod(n) for n = 30249991 and 30250009.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6626 + ... + 10217.

It is an arithmetic number, because the mean of its divisors is an integer number (4421550).

Almost surely, 2^30250028 is an apocalyptic number.

It is an amenable number.

30250028 is a deficient number, since it is larger than the sum of its proper divisors (22808572).

30250028 is a wasteful number, since it uses less digits than its factorization.

30250028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17296 (or 17294 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 30250028 is about 5500.0025454540. The cubic root of 30250028 is about 311.5840803546.

The spelling of 30250028 in words is "thirty million, two hundred fifty thousand, twenty-eight".