11056840 has 32 divisors (see below), whose sum is σ = 25200000. Its totient is φ = 4365504.

The previous prime is 11056831. The next prime is 11056849. The reversal of 11056840 is 4865011.

It is an interprime number because it is at equal distance from previous prime (11056831) and next prime (11056849).

It is not an unprimeable number, because it can be changed into a prime (11056849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1411 + ... + 4909.

It is an arithmetic number, because the mean of its divisors is an integer number (787500).

Almost surely, 2^11056840 is an apocalyptic number.

11056840 is a gapful number since it is divisible by the number (10) 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 11056840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12600000).

11056840 is an abundant number, since it is smaller than the sum of its proper divisors (14143160).

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

11056840 is a wasteful number, since it uses less digits than its factorization.

11056840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3589 (or 3585 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 11056840 is about 3325.1827017474. The cubic root of 11056840 is about 222.7804148685.

The spelling of 11056840 in words is "eleven million, fifty-six thousand, eight hundred forty".