3206640536 has 32 divisors (see below), whose sum is σ = 6561352080. Its totient is φ = 1457049600.

The previous prime is 3206640529. The next prime is 3206640539. The reversal of 3206640536 is 6350466023.

It is a junction number, because it is equal to n+sod(n) for n = 3206640496 and 3206640505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3206640539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 366776 + ... + 375416.

Almost surely, 2^3206640536 is an apocalyptic number.

It is an amenable number.

3206640536 is an abundant number, since it is smaller than the sum of its proper divisors (3354711544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3206640536 is a wasteful number, since it uses less digits than its factorization.

3206640536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12875 (or 12871 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

The square root of 3206640536 is about 56627.2066766497. The cubic root of 3206640536 is about 1474.6312261651.

The spelling of 3206640536 in words is "three billion, two hundred six million, six hundred forty thousand, five hundred thirty-six".