30232809 has 12 divisors (see below), whose sum is σ = 43863300. Its totient is φ = 20065824.

The previous prime is 30232793. The next prime is 30232837. The reversal of 30232809 is 90823203.

It can be written as a sum of positive squares in 2 ways, for example, as 24472809 + 5760000 = 4947^2 + 2400^2 .

It is not a de Polignac number, because 30232809 - 2⁴ = 30232793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30232859) 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, 5274 + ... + 9395.

It is an arithmetic number, because the mean of its divisors is an integer number (3655275).

Almost surely, 2^30232809 is an apocalyptic number.

It is an amenable number.

30232809 is a deficient number, since it is larger than the sum of its proper divisors (13630491).

30232809 is a wasteful number, since it uses less digits than its factorization.

30232809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14904 (or 14901 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30232809 is about 5498.4369597186. The cubic root of 30232809 is about 311.5249488986.

It can be divided in two parts, 3023 and 2809, that added together give a cube (5832 = 18³).

The spelling of 30232809 in words is "thirty million, two hundred thirty-two thousand, eight hundred nine".