30425028 has 24 divisors (see below), whose sum is σ = 71148000. Its totient is φ = 10119360.

The previous prime is 30424969. The next prime is 30425039. The reversal of 30425028 is 82052403.

It is a junction number, because it is equal to n+sod(n) for n = 30424989 and 30425007.

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, 3448 + ... + 8528.

It is an arithmetic number, because the mean of its divisors is an integer number (2964500).

Almost surely, 2^30425028 is an apocalyptic number.

It is an amenable number.

30425028 is an abundant number, since it is smaller than the sum of its proper divisors (40722972).

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

30425028 is a wasteful number, since it uses less digits than its factorization.

30425028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587 (or 5585 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 30425028 is about 5515.8886863315. Note that the first 3 decimals coincide. The cubic root of 30425028 is about 312.1837756883.

The spelling of 30425028 in words is "thirty million, four hundred twenty-five thousand, twenty-eight".