3081648 has 80 divisors (see below), whose sum is σ = 8729600. Its totient is φ = 933120.

The previous prime is 3081643. The next prime is 3081677. The reversal of 3081648 is 8461803.

It is a happy number.

3081648 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3081643) 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, 28218 + ... + 28326.

It is an arithmetic number, because the mean of its divisors is an integer number (109120).

Almost surely, 2^3081648 is an apocalyptic number.

3081648 is a gapful number since it is divisible by the number (38) 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 3081648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4364800).

3081648 is an abundant number, since it is smaller than the sum of its proper divisors (5647952).

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

3081648 is a wasteful number, since it uses less digits than its factorization.

3081648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 3081648 is about 1755.4623322646. The cubic root of 3081648 is about 145.5216722361.

The spelling of 3081648 in words is "three million, eighty-one thousand, six hundred forty-eight".