30828043 has 4 divisors (see below), whose sum is σ = 31822528. Its totient is φ = 29833560.

The previous prime is 30828041. The next prime is 30828059. The reversal of 30828043 is 34082803.

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

It is a cyclic number.

It is not a de Polignac number, because 30828043 - 2¹ = 30828041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30828041) 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 3 ways as a sum of consecutive naturals, for example, 497196 + ... + 497257.

It is an arithmetic number, because the mean of its divisors is an integer number (7955632).

Almost surely, 2^30828043 is an apocalyptic number.

30828043 is a deficient number, since it is larger than the sum of its proper divisors (994485).

30828043 is an equidigital number, since it uses as much as digits as its factorization.

30828043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994484.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 30828043 is about 5552.3006943068. The cubic root of 30828043 is about 313.5561466591.

The spelling of 30828043 in words is "thirty million, eight hundred twenty-eight thousand, forty-three".