3056861940 has 96 divisors (see below), whose sum is σ = 9389278080. Its totient is φ = 736934400.

The previous prime is 3056861909. The next prime is 3056861947. The reversal of 3056861940 is 491686503.

It is a junction number, because it is equal to n+sod(n) for n = 3056861892 and 3056861901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3056861947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106666 + ... + 132254.

It is an arithmetic number, because the mean of its divisors is an integer number (97804980).

Almost surely, 2^3056861940 is an apocalyptic number.

3056861940 is a gapful number since it is divisible by the number (30) 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 3056861940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4694639040).

3056861940 is an abundant number, since it is smaller than the sum of its proper divisors (6332416140).

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

3056861940 is a wasteful number, since it uses less digits than its factorization.

3056861940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25793 (or 25791 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 3056861940 is about 55288.8952683991. The cubic root of 3056861940 is about 1451.3047218039.

The spelling of 3056861940 in words is "three billion, fifty-six million, eight hundred sixty-one thousand, nine hundred forty".