3333728868 has 12 divisors (see below), whose sum is σ = 7778700720. Its totient is φ = 1111242952.

The previous prime is 3333728777. The next prime is 3333728869. The reversal of 3333728868 is 8688273333.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×3333728868² = 22227496330673122848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3333728868.

It is not an unprimeable number, because it can be changed into a prime (3333728869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138905358 + ... + 138905381.

It is an arithmetic number, because the mean of its divisors is an integer number (648225060).

Almost surely, 2^3333728868 is an apocalyptic number.

It is an amenable number.

3333728868 is an abundant number, since it is smaller than the sum of its proper divisors (4444971852).

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

3333728868 is a wasteful number, since it uses less digits than its factorization.

3333728868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277810746 (or 277810744 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 51.

The square root of 3333728868 is about 57738.4522480470. The cubic root of 3333728868 is about 1493.8606648799.

The spelling of 3333728868 in words is "three billion, three hundred thirty-three million, seven hundred twenty-eight thousand, eight hundred sixty-eight".