30830075 has 12 divisors (see below), whose sum is σ = 38427600. Its totient is φ = 24536160.

The previous prime is 30830057. The next prime is 30830077. The reversal of 30830075 is 57003803.

30830075 = 55² + 56² + ... + 452².

It is not a de Polignac number, because 30830075 - 2⁸ = 30829819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30830077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1877 + ... + 8073.

It is an arithmetic number, because the mean of its divisors is an integer number (3202300).

Almost surely, 2^30830075 is an apocalyptic number.

30830075 is a deficient number, since it is larger than the sum of its proper divisors (7597525).

30830075 is a wasteful number, since it uses less digits than its factorization.

30830075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6406 (or 6401 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 30830075 is about 5552.4836784992. The cubic root of 30830075 is about 313.5630357556.

Adding to 30830075 its reverse (57003803), we get a palindrome (87833878).

The spelling of 30830075 in words is "thirty million, eight hundred thirty thousand, seventy-five".