30958265 has 12 divisors (see below), whose sum is σ = 40228524. Its totient is φ = 22860864.

The previous prime is 30958259. The next prime is 30958267. The reversal of 30958265 is 56285903.

It can be written as a sum of positive squares in 6 ways, for example, as 8042896 + 22915369 = 2836^2 + 4787^2 .

It is not a de Polignac number, because 30958265 - 2¹⁴ = 30941881 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30958267) 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 11 ways as a sum of consecutive naturals, for example, 17474 + ... + 19163.

It is an arithmetic number, because the mean of its divisors is an integer number (3352377).

Almost surely, 2^30958265 is an apocalyptic number.

It is an amenable number.

30958265 is a deficient number, since it is larger than the sum of its proper divisors (9270259).

30958265 is a wasteful number, since it uses less digits than its factorization.

30958265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36668 (or 36655 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 38.

The square root of 30958265 is about 5564.0151868952. The cubic root of 30958265 is about 313.9970282489.

The spelling of 30958265 in words is "thirty million, nine hundred fifty-eight thousand, two hundred sixty-five".