3112445688 has 64 divisors (see below), whose sum is σ = 8525088000. Its totient is φ = 939098880.

The previous prime is 3112445683. The next prime is 3112445711. The reversal of 3112445688 is 8865442113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3112445681) 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, 36213 + ... + 86811.

It is an arithmetic number, because the mean of its divisors is an integer number (133204500).

Almost surely, 2^3112445688 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 3112445688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4262544000).

3112445688 is an abundant number, since it is smaller than the sum of its proper divisors (5412642312).

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

3112445688 is a wasteful number, since it uses less digits than its factorization.

3112445688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50852 (or 50848 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 3112445688 is about 55789.2972531470. The cubic root of 3112445688 is about 1460.0484264916.

The spelling of 3112445688 in words is "three billion, one hundred twelve million, four hundred forty-five thousand, six hundred eighty-eight".