30228533 has 6 divisors (see below), whose sum is σ = 32111586. Its totient is φ = 28450112.

The previous prime is 30228529. The next prime is 30228551. The reversal of 30228533 is 33582203.

It can be written as a sum of positive squares in 3 ways, for example, as 9498724 + 20729809 = 3082^2 + 4553^2 .

It is not a de Polignac number, because 30228533 - 2² = 30228529 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30228553) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 52010 + ... + 52587.

It is an arithmetic number, because the mean of its divisors is an integer number (5351931).

Almost surely, 2^30228533 is an apocalyptic number.

It is an amenable number.

30228533 is a deficient number, since it is larger than the sum of its proper divisors (1883053).

30228533 is a wasteful number, since it uses less digits than its factorization.

30228533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104631 (or 104614 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 30228533 is about 5498.0481081926. The cubic root of 30228533 is about 311.5102612846.

The spelling of 30228533 in words is "thirty million, two hundred twenty-eight thousand, five hundred thirty-three".