30028107 has 4 divisors (see below), whose sum is σ = 40037480. Its totient is φ = 20018736.

The previous prime is 30028091. The next prime is 30028111. The reversal of 30028107 is 70182003.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 30028107 - 2⁴ = 30028091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30028177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5004682 + ... + 5004687.

It is an arithmetic number, because the mean of its divisors is an integer number (10009370).

Almost surely, 2^30028107 is an apocalyptic number.

30028107 is a deficient number, since it is larger than the sum of its proper divisors (10009373).

30028107 is a wasteful number, since it uses less digits than its factorization.

30028107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10009372.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 30028107 is about 5479.7907806777. The cubic root of 30028107 is about 310.8202591771.

It can be divided in two parts, 30028 and 107, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 30028107 in words is "thirty million, twenty-eight thousand, one hundred seven".