3081888 has 120 divisors (see below), whose sum is σ = 9604980. Its totient is φ = 967680.

The previous prime is 3081877. The next prime is 3081901. The reversal of 3081888 is 8881803.

It can be written as a sum of positive squares in 2 ways, for example, as 2862864 + 219024 = 1692^2 + 468^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 75148 + ... + 75188.

Almost surely, 2^3081888 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 3081888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4802490).

3081888 is an abundant number, since it is smaller than the sum of its proper divisors (6523092).

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

3081888 is a wasteful number, since it uses less digits than its factorization.

3081888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 36.

The square root of 3081888 is about 1755.5306889941. The cubic root of 3081888 is about 145.5254499004.

It can be divided in two parts, 3081 and 888, that added together give a square (3969 = 63²).

The spelling of 3081888 in words is "three million, eighty-one thousand, eight hundred eighty-eight".