3213907264 has 56 divisors (see below), whose sum is σ = 6461507016. Its totient is φ = 1585920000.

The previous prime is 3213907259. The next prime is 3213907289. The reversal of 3213907264 is 4627093123.

It can be written as a sum of positive squares in 4 ways, for example, as 948147264 + 2265760000 = 30792^2 + 47600^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2720754 + ... + 2721934.

Almost surely, 2^3213907264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3213907264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3230753508).

3213907264 is an abundant number, since it is smaller than the sum of its proper divisors (3247599752).

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

3213907264 is a wasteful number, since it uses less digits than its factorization.

3213907264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 3213907264 is about 56691.3332353368. Note that the first 3 decimals coincide. The cubic root of 3213907264 is about 1475.7442975744.

The spelling of 3213907264 in words is "three billion, two hundred thirteen million, nine hundred seven thousand, two hundred sixty-four".