3881080 has 64 divisors (see below), whose sum is σ = 10160640. Its totient is φ = 1306752.

The previous prime is 3881077. The next prime is 3881093. The reversal of 3881080 is 801883.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23157 + ... + 23323.

It is an arithmetic number, because the mean of its divisors is an integer number (158760).

Almost surely, 2^3881080 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 3881080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5080320).

3881080 is an abundant number, since it is smaller than the sum of its proper divisors (6279560).

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

3881080 is a wasteful number, since it uses less digits than its factorization.

3881080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 3881080 is about 1970.0456847495. The cubic root of 3881080 is about 157.1511384853.

It can be divided in two parts, 38 and 81080, that added together give a palindrome (81118).

The spelling of 3881080 in words is "three million, eight hundred eighty-one thousand, eighty".