3261949056 has 160 divisors (see below), whose sum is σ = 10130313600. Its totient is φ = 1039965696.

The previous prime is 3261949007. The next prime is 3261949109. The reversal of 3261949056 is 6509491623.

3261949056 is a `hidden beast` number, since 326 + 194 + 90 + 56 = 666.

It is a super-2 number, since 2×3261949056² = 21280623287878582272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 231625 + ... + 245303.

It is an arithmetic number, because the mean of its divisors is an integer number (63314460).

Almost surely, 2^3261949056 is an apocalyptic number.

3261949056 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3261949056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5065156800).

3261949056 is an abundant number, since it is smaller than the sum of its proper divisors (6868364544).

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

3261949056 is a wasteful number, since it uses less digits than its factorization.

3261949056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13728 (or 13707 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 3261949056 is about 57113.4752575957. The cubic root of 3261949056 is about 1483.0611489083.

The spelling of 3261949056 in words is "three billion, two hundred sixty-one million, nine hundred forty-nine thousand, fifty-six".