3240405233 has 4 divisors (see below), whose sum is σ = 3489667188. Its totient is φ = 2991143280.

The previous prime is 3240405221. The next prime is 3240405239. The reversal of 3240405233 is 3325040423.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 652444849 + 2587960384 = 25543^2 + 50872^2 .

It is a cyclic number.

It is not a de Polignac number, because 3240405233 - 2⁸ = 3240404977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3240405239) 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 3 ways as a sum of consecutive naturals, for example, 124630958 + ... + 124630983.

It is an arithmetic number, because the mean of its divisors is an integer number (872416797).

Almost surely, 2^3240405233 is an apocalyptic number.

It is an amenable number.

3240405233 is a deficient number, since it is larger than the sum of its proper divisors (249261955).

3240405233 is a wasteful number, since it uses less digits than its factorization.

3240405233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249261954.

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 3240405233 is about 56924.5573808001. The cubic root of 3240405233 is about 1479.7889327992.

Adding to 3240405233 its reverse (3325040423), we get a palindrome (6565445656).

The spelling of 3240405233 in words is "three billion, two hundred forty million, four hundred five thousand, two hundred thirty-three".