232320909 has 16 divisors (see below), whose sum is σ = 314654720. Its totient is φ = 152446320.

The previous prime is 232320863. The next prime is 232320919. The reversal of 232320909 is 909023232.

It is a happy number.

It is not a de Polignac number, because 232320909 - 2¹¹ = 232318861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232320919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85644 + ... + 88314.

It is an arithmetic number, because the mean of its divisors is an integer number (19665920).

Almost surely, 2^232320909 is an apocalyptic number.

It is an amenable number.

232320909 is a deficient number, since it is larger than the sum of its proper divisors (82333811).

232320909 is a wasteful number, since it uses less digits than its factorization.

232320909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 232320909 is about 15242.0769254062. The cubic root of 232320909 is about 614.7465490103.

It can be divided in two parts, 2323 and 20909, that added together give a palindrome (23232).

The spelling of 232320909 in words is "two hundred thirty-two million, three hundred twenty thousand, nine hundred nine".