232540321 has 8 divisors (see below), whose sum is σ = 250874624. Its totient is φ = 214269840.

The previous prime is 232540313. The next prime is 232540333. The reversal of 232540321 is 123045232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 232540321 - 2³ = 232540313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 232540292 and 232540301.

It is not an unprimeable number, because it can be changed into a prime (232540351) 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 7 ways as a sum of consecutive naturals, for example, 8241 + ... + 23086.

It is an arithmetic number, because the mean of its divisors is an integer number (31359328).

Almost surely, 2^232540321 is an apocalyptic number.

It is an amenable number.

232540321 is a deficient number, since it is larger than the sum of its proper divisors (18334303).

232540321 is a wasteful number, since it uses less digits than its factorization.

232540321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31911.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 232540321 is about 15249.2728023339. The cubic root of 232540321 is about 614.9400175047.

Adding to 232540321 its reverse (123045232), we get a palindrome (355585553).

The spelling of 232540321 in words is "two hundred thirty-two million, five hundred forty thousand, three hundred twenty-one".