30828045 has 8 divisors (see below), whose sum is σ = 49324896. Its totient is φ = 16441616.

The previous prime is 30828041. The next prime is 30828059. The reversal of 30828045 is 54082803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30828045 - 2² = 30828041 is a prime.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 1027587 + ... + 1027616.

It is an arithmetic number, because the mean of its divisors is an integer number (6165612).

Almost surely, 2^30828045 is an apocalyptic number.

It is an amenable number.

30828045 is a deficient number, since it is larger than the sum of its proper divisors (18496851).

30828045 is a wasteful number, since it uses less digits than its factorization.

30828045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055211.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 30828045 is about 5552.3008744123. The cubic root of 30828045 is about 313.5561534398.

The spelling of 30828045 in words is "thirty million, eight hundred twenty-eight thousand, forty-five".