11045440 has 56 divisors (see below), whose sum is σ = 30065472. Its totient is φ = 3786240.

The previous prime is 11045431. The next prime is 11045443. The reversal of 11045440 is 4454011.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (11045443) by changing a digit.

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, 226 + ... + 4705.

Almost surely, 2^11045440 is an apocalyptic number.

11045440 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 11045440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15032736).

11045440 is an abundant number, since it is smaller than the sum of its proper divisors (19020032).

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

11045440 is an equidigital number, since it uses as much as digits as its factorization.

11045440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4955 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 11045440 is about 3323.4680681481. The cubic root of 11045440 is about 222.7038236644.

Adding to 11045440 its reverse (4454011), we get a palindrome (15499451).

The spelling of 11045440 in words is "eleven million, forty-five thousand, four hundred forty".