11056980 has 72 divisors (see below), whose sum is σ = 34052256. Its totient is φ = 2678720.

The previous prime is 11056979. The next prime is 11056999. The reversal of 11056980 is 8965011.

It is a happy number.

11056980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6499 + ... + 8021.

It is an arithmetic number, because the mean of its divisors is an integer number (472948).

Almost surely, 2^11056980 is an apocalyptic number.

11056980 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 11056980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17026128).

11056980 is an abundant number, since it is smaller than the sum of its proper divisors (22995276).

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

11056980 is a wasteful number, since it uses less digits than its factorization.

11056980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 11056980 is about 3325.2037531556. The cubic root of 11056980 is about 222.7813551350.

The spelling of 11056980 in words is "eleven million, fifty-six thousand, nine hundred eighty".