30328506 has 40 divisors (see below), whose sum is σ = 73190964. Its totient is φ = 9331200.

The previous prime is 30328483. The next prime is 30328523. The reversal of 30328506 is 60582303.

It can be written as a sum of positive squares in 2 ways, for example, as 29257281 + 1071225 = 5409^2 + 1035^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30328506.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5095 + ... + 9306.

Almost surely, 2^30328506 is an apocalyptic number.

30328506 is an abundant number, since it is smaller than the sum of its proper divisors (42862458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30328506 is a wasteful number, since it uses less digits than its factorization.

30328506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14428 (or 14419 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 30328506 is about 5507.1322845924. The cubic root of 30328506 is about 311.8532964148.

The spelling of 30328506 in words is "thirty million, three hundred twenty-eight thousand, five hundred six".