11436040 has 128 divisors (see below), whose sum is σ = 33177600. Its totient is φ = 3444480.

The previous prime is 11436023. The next prime is 11436077. The reversal of 11436040 is 4063411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11435999 and 11436017.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 144721 + ... + 144799.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^11436040 is an apocalyptic number.

11436040 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 11436040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16588800).

11436040 is an abundant number, since it is smaller than the sum of its proper divisors (21741560).

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

11436040 is a wasteful number, since it uses less digits than its factorization.

11436040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 11436040 is about 3381.7214551172. The cubic root of 11436040 is about 225.2986322702.

Adding to 11436040 its reverse (4063411), we get a palindrome (15499451).

The spelling of 11436040 in words is "eleven million, four hundred thirty-six thousand, forty".