30228645 has 16 divisors (see below), whose sum is σ = 48543552. Its totient is φ = 16062720.

The previous prime is 30228637. The next prime is 30228659. The reversal of 30228645 is 54682203.

It is not a de Polignac number, because 30228645 - 2³ = 30228637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 685 + ... + 7805.

It is an arithmetic number, because the mean of its divisors is an integer number (3033972).

Almost surely, 2^30228645 is an apocalyptic number.

It is an amenable number.

30228645 is a deficient number, since it is larger than the sum of its proper divisors (18314907).

30228645 is a wasteful number, since it uses less digits than its factorization.

30228645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7412.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 30228645 is about 5498.0582936160. The cubic root of 30228645 is about 311.5106460106.

The spelling of 30228645 in words is "thirty million, two hundred twenty-eight thousand, six hundred forty-five".