17230409 has 12 divisors (see below), whose sum is σ = 20322324. Its totient is φ = 14563584.

The previous prime is 17230403. The next prime is 17230417. The reversal of 17230409 is 90403271.

17230409 = T₈₁₄ + T₈₁₅ + ... + T₈₆₂.

It can be written as a sum of positive squares in 2 ways, for example, as 5175625 + 12054784 = 2275^2 + 3472^2 .

It is a de Polignac number, because none of the positive numbers 2^k-17230409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17230403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1169 + ... + 5985.

It is an arithmetic number, because the mean of its divisors is an integer number (1693527).

Almost surely, 2^17230409 is an apocalyptic number.

It is an amenable number.

17230409 is a deficient number, since it is larger than the sum of its proper divisors (3091915).

17230409 is an equidigital number, since it uses as much as digits as its factorization.

17230409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904 (or 4897 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 17230409 is about 4150.9527821935. The cubic root of 17230409 is about 258.2846097033.

The spelling of 17230409 in words is "seventeen million, two hundred thirty thousand, four hundred nine".