2381056 has 36 divisors (see below), whose sum is σ = 4856544. Its totient is φ = 1164800.

The previous prime is 2381053. The next prime is 2381077. The reversal of 2381056 is 6501832.

It is a happy number.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 2381056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2381053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18111 + ... + 18241.

It is an arithmetic number, because the mean of its divisors is an integer number (134904).

2^2381056 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 2381056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2428272).

2381056 is an abundant number, since it is smaller than the sum of its proper divisors (2475488).

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

2381056 is an equidigital number, since it uses as much as digits as its factorization.

2381056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2381056 is about 1543.0670756646. The cubic root of 2381056 is about 133.5333885730.

Adding to 2381056 its reverse (6501832), we get a palindrome (8882888).

The spelling of 2381056 in words is "two million, three hundred eighty-one thousand, fifty-six".