3194681140 has 144 divisors (see below), whose sum is σ = 8501375232. Its totient is φ = 985780224.

The previous prime is 3194681111. The next prime is 3194681141. The reversal of 3194681140 is 411864913.

It is a self number, because there is not a number n which added to its sum of digits gives 3194681140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3194681141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 928864 + ... + 932296.

It is an arithmetic number, because the mean of its divisors is an integer number (59037328).

Almost surely, 2^3194681140 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 3194681140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4250687616).

3194681140 is an abundant number, since it is smaller than the sum of its proper divisors (5306694092).

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

3194681140 is a wasteful number, since it uses less digits than its factorization.

3194681140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506 (or 3487 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 3194681140 is about 56521.5104186008. The cubic root of 3194681140 is about 1472.7956946938.

The spelling of 3194681140 in words is "three billion, one hundred ninety-four million, six hundred eighty-one thousand, one hundred forty".