3209228856 has 128 divisors (see below), whose sum is σ = 9764712000. Its totient is φ = 972066816.

The previous prime is 3209228809. The next prime is 3209228879. The reversal of 3209228856 is 6588229023.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91420 + ... + 121556.

Almost surely, 2^3209228856 is an apocalyptic number.

3209228856 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 3209228856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4882356000).

3209228856 is an abundant number, since it is smaller than the sum of its proper divisors (6555483144).

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

3209228856 is a wasteful number, since it uses less digits than its factorization.

3209228856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30198 (or 30188 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 3209228856 is about 56650.0560988248. The cubic root of 3209228856 is about 1475.0278812694.

The spelling of 3209228856 in words is "three billion, two hundred nine million, two hundred twenty-eight thousand, eight hundred fifty-six".