3216513432 has 64 divisors (see below), whose sum is σ = 8958988800. Its totient is φ = 953959040.

The previous prime is 3216513409. The next prime is 3216513451. The reversal of 3216513432 is 2343156123.

It is a self number, because there is not a number n which added to its sum of digits gives 3216513432.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 117207 + ... + 142022.

It is an arithmetic number, because the mean of its divisors is an integer number (139984200).

Almost surely, 2^3216513432 is an apocalyptic number.

It is an amenable number.

3216513432 is an abundant number, since it is smaller than the sum of its proper divisors (5742475368).

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

3216513432 is a wasteful number, since it uses less digits than its factorization.

3216513432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259296 (or 259292 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 3216513432 is about 56714.3141719972. The cubic root of 3216513432 is about 1476.1430851071.

Adding to 3216513432 its reverse (2343156123), we get a palindrome (5559669555).

The spelling of 3216513432 in words is "three billion, two hundred sixteen million, five hundred thirteen thousand, four hundred thirty-two".