11053440 has 192 divisors, whose sum is σ = 40575600. Its totient is φ = 2764800.

The previous prime is 11053433. The next prime is 11053447. The reversal of 11053440 is 4435011.

11053440 = 293² + 294² + ... + 387².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11053433) and next prime (11053447).

It is a tau number, because it is divible by the number of its divisors (192).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11053447) 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, 109390 + ... + 109490.

Almost surely, 2^11053440 is an apocalyptic number.

11053440 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 11053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20287800).

11053440 is an abundant number, since it is smaller than the sum of its proper divisors (29522160).

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

11053440 is a wasteful number, since it uses less digits than its factorization.

11053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 11053440 is about 3324.6714123354. The cubic root of 11053440 is about 222.7575773893.

11053440 divided by its product of nonzero digits (240) gives a triangular number (46056 = T₃₀₃).

Adding to 11053440 its reverse (4435011), we get a palindrome (15488451).

The spelling of 11053440 in words is "eleven million, fifty-three thousand, four hundred forty".