3205869888 has 112 divisors (see below), whose sum is σ = 9160312896. Its totient is φ = 983654400.

The previous prime is 3205869853. The next prime is 3205869889. The reversal of 3205869888 is 8889685023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3205869889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 999295 + ... + 1002497.

It is an arithmetic number, because the mean of its divisors is an integer number (81788508).

Almost surely, 2^3205869888 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 3205869888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4580156448).

3205869888 is an abundant number, since it is smaller than the sum of its proper divisors (5954443008).

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

3205869888 is a wasteful number, since it uses less digits than its factorization.

3205869888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632 (or 3622 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 57.

The square root of 3205869888 is about 56620.4016940890. The cubic root of 3205869888 is about 1474.5130845936.

The spelling of 3205869888 in words is "three billion, two hundred five million, eight hundred sixty-nine thousand, eight hundred eighty-eight".