3220002786 has 128 divisors (see below), whose sum is σ = 8671444992. Its totient is φ = 769824000.

The previous prime is 3220002769. The next prime is 3220002833. The reversal of 3220002786 is 6872000223.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3248751 + ... + 3249741.

It is an arithmetic number, because the mean of its divisors is an integer number (67745664).

Almost surely, 2^3220002786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3220002786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4335722496).

3220002786 is an abundant number, since it is smaller than the sum of its proper divisors (5451442206).

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

3220002786 is a wasteful number, since it uses less digits than its factorization.

3220002786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 3220002786 is about 56745.0683848385. The cubic root of 3220002786 is about 1476.6766778147.

The spelling of 3220002786 in words is "three billion, two hundred twenty million, two thousand, seven hundred eighty-six".