3081192940 has 48 divisors (see below), whose sum is σ = 7417315584. Its totient is φ = 1053201600.

The previous prime is 3081192859. The next prime is 3081192941. The reversal of 3081192940 is 492911803.

It is a self number, because there is not a number n which added to its sum of digits gives 3081192940.

It is not an unprimeable number, because it can be changed into a prime (3081192941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13095 + ... + 79585.

It is an arithmetic number, because the mean of its divisors is an integer number (154527408).

Almost surely, 2^3081192940 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 3081192940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3708657792).

3081192940 is an abundant number, since it is smaller than the sum of its proper divisors (4336122644).

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

3081192940 is a wasteful number, since it uses less digits than its factorization.

3081192940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66838 (or 66836 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 3081192940 is about 55508.4943049260. The cubic root of 3081192940 is about 1455.1450893132.

The spelling of 3081192940 in words is "three billion, eighty-one million, one hundred ninety-two thousand, nine hundred forty".