3220002785 has 16 divisors (see below), whose sum is σ = 3920313600. Its totient is φ = 2538686976.

The previous prime is 3220002769. The next prime is 3220002833. The reversal of 3220002785 is 5872000223.

It is a cyclic number.

It is not a de Polignac number, because 3220002785 - 2⁴ = 3220002769 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102026 + ... + 129804.

It is an arithmetic number, because the mean of its divisors is an integer number (245019600).

Almost surely, 2^3220002785 is an apocalyptic number.

It is an amenable number.

3220002785 is a deficient number, since it is larger than the sum of its proper divisors (700310815).

3220002785 is a wasteful number, since it uses less digits than its factorization.

3220002785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28120.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 3220002785 is about 56745.0683760272. The cubic root of 3220002785 is about 1476.6766776618.

The spelling of 3220002785 in words is "three billion, two hundred twenty million, two thousand, seven hundred eighty-five".