3233840639 has 4 divisors (see below), whose sum is σ = 3237322560. Its totient is φ = 3230358720.

The previous prime is 3233840629. The next prime is 3233840653. The reversal of 3233840639 is 9360483323.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3233840639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3233840596 and 3233840605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3233840629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739567 + ... + 1741424.

It is an arithmetic number, because the mean of its divisors is an integer number (809330640).

Almost surely, 2^3233840639 is an apocalyptic number.

3233840639 is a deficient number, since it is larger than the sum of its proper divisors (3481921).

3233840639 is an equidigital number, since it uses as much as digits as its factorization.

3233840639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481920.

The product of its (nonzero) digits is 279936, while the sum is 41.

The square root of 3233840639 is about 56866.8676735408. The cubic root of 3233840639 is about 1478.7889775355.

The spelling of 3233840639 in words is "three billion, two hundred thirty-three million, eight hundred forty thousand, six hundred thirty-nine".