11120640 has 104 divisors (see below), whose sum is σ = 35778288. Its totient is φ = 2949120.

The previous prime is 11120633. The next prime is 11120653. The reversal of 11120640 is 4602111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61350 + ... + 61530.

It is an arithmetic number, because the mean of its divisors is an integer number (344022).

Almost surely, 2^11120640 is an apocalyptic number.

11120640 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 11120640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17889144).

11120640 is an abundant number, since it is smaller than the sum of its proper divisors (24657648).

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

11120640 is an equidigital number, since it uses as much as digits as its factorization.

11120640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 11120640 is about 3334.7623603489. The cubic root of 11120640 is about 223.2080879894.

Adding to 11120640 its reverse (4602111), we get a palindrome (15722751).

The spelling of 11120640 in words is "eleven million, one hundred twenty thousand, six hundred forty".