30028395 has 16 divisors (see below), whose sum is σ = 48764160. Its totient is φ = 15775584.

The previous prime is 30028357. The next prime is 30028399. The reversal of 30028395 is 59382003.

It is a happy number.

It is not a de Polignac number, because 30028395 - 2⁷ = 30028267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30028399) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13935 + ... + 15944.

It is an arithmetic number, because the mean of its divisors is an integer number (3047760).

Almost surely, 2^30028395 is an apocalyptic number.

30028395 is a deficient number, since it is larger than the sum of its proper divisors (18735765).

30028395 is a wasteful number, since it uses less digits than its factorization.

30028395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29954.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30028395 is about 5479.8170589902. The cubic root of 30028395 is about 310.8212528677.

The spelling of 30028395 in words is "thirty million, twenty-eight thousand, three hundred ninety-five".