30030028 has 24 divisors (see below), whose sum is σ = 60382112. Its totient is φ = 12801024.

The previous prime is 30030023. The next prime is 30030031. The reversal of 30030028 is 82003003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30029993 and 30030020.

It is not an unprimeable number, because it can be changed into a prime (30030023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626 + ... + 8182.

Almost surely, 2^30030028 is an apocalyptic number.

It is an amenable number.

30030028 is an abundant number, since it is smaller than the sum of its proper divisors (30352084).

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

30030028 is a wasteful number, since it uses less digits than its factorization.

30030028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5761 (or 5759 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30030028 is about 5479.9660582890. The cubic root of 30030028 is about 310.8268871116.

The spelling of 30030028 in words is "thirty million, thirty thousand, twenty-eight".