3269052640 has 144 divisors (see below), whose sum is σ = 9193936752. Its totient is φ = 1094639616.

The previous prime is 3269052599. The next prime is 3269052643. The reversal of 3269052640 is 462509623.

It is a self number, because there is not a number n which added to its sum of digits gives 3269052640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3269052643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 332272 + ... + 341968.

It is an arithmetic number, because the mean of its divisors is an integer number (63846783).

Almost surely, 2^3269052640 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 3269052640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4596968376).

3269052640 is an abundant number, since it is smaller than the sum of its proper divisors (5924884112).

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

3269052640 is a wasteful number, since it uses less digits than its factorization.

3269052640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9769 (or 9754 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 3269052640 is about 57175.6297735320. The cubic root of 3269052640 is about 1484.1369281509.

The spelling of 3269052640 in words is "three billion, two hundred sixty-nine million, fifty-two thousand, six hundred forty".