11056140 has 72 divisors (see below), whose sum is σ = 33808320. Its totient is φ = 2924544.

The previous prime is 11056121. The next prime is 11056147. The reversal of 11056140 is 4165011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11056147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42892 + ... + 43148.

It is an arithmetic number, because the mean of its divisors is an integer number (469560).

Almost surely, 2^11056140 is an apocalyptic number.

11056140 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 11056140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16904160).

11056140 is an abundant number, since it is smaller than the sum of its proper divisors (22752180).

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

11056140 is a wasteful number, since it uses less digits than its factorization.

11056140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 11056140 is about 3325.0774427072. The cubic root of 11056140 is about 222.7757134173.

The spelling of 11056140 in words is "eleven million, fifty-six thousand, one hundred forty".