230407209 has 12 divisors (see below), whose sum is σ = 333257652. Its totient is φ = 153398400.

The previous prime is 230407081. The next prime is 230407211. The reversal of 230407209 is 902704032.

230407209 is a `hidden beast` number, since 230 + 407 + 20 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 71571600 + 158835609 = 8460^2 + 12603^2 .

It is not a de Polignac number, because 230407209 - 2⁷ = 230407081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230407609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9972 + ... + 23669.

It is an arithmetic number, because the mean of its divisors is an integer number (27771471).

Almost surely, 2^230407209 is an apocalyptic number.

It is an amenable number.

230407209 is a deficient number, since it is larger than the sum of its proper divisors (102850443).

230407209 is a wasteful number, since it uses less digits than its factorization.

230407209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34408 (or 34405 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 230407209 is about 15179.1702342388. The cubic root of 230407209 is about 613.0539397425.

The spelling of 230407209 in words is "two hundred thirty million, four hundred seven thousand, two hundred nine".