3081839904 has 144 divisors (see below), whose sum is σ = 10296284544. Its totient is φ = 862041600.

The previous prime is 3081839899. The next prime is 3081839911. The reversal of 3081839904 is 4099381803.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Smith number, since the sum of its digits (45) 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 3081839904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3769 + ... + 78599.

It is an arithmetic number, because the mean of its divisors is an integer number (71501976).

Almost surely, 2^3081839904 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 3081839904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5148142272).

3081839904 is an abundant number, since it is smaller than the sum of its proper divisors (7214444640).

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

3081839904 is a wasteful number, since it uses less digits than its factorization.

3081839904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74871 (or 74860 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 3081839904 is about 55514.3216116346. The cubic root of 3081839904 is about 1455.2469287222.

The spelling of 3081839904 in words is "three billion, eighty-one million, eight hundred thirty-nine thousand, nine hundred four".