30090028 has 12 divisors (see below), whose sum is σ = 54080992. Its totient is φ = 14638320.

The previous prime is 30090001. The next prime is 30090031. The reversal of 30090028 is 82009003.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 30089990 and 30090008.

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, 101508 + ... + 101803.

Almost surely, 2^30090028 is an apocalyptic number.

It is an amenable number.

30090028 is a deficient number, since it is larger than the sum of its proper divisors (23990964).

30090028 is a wasteful number, since it uses less digits than its factorization.

30090028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203352 (or 203350 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 30090028 is about 5485.4378129735. The cubic root of 30090028 is about 311.0337601161.

The spelling of 30090028 in words is "thirty million, ninety thousand, twenty-eight".