11187440 has 40 divisors (see below), whose sum is σ = 28377648. Its totient is φ = 4067840.

The previous prime is 11187419. The next prime is 11187503. The reversal of 11187440 is 4478111.

11187440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5477 + ... + 7236.

Almost surely, 2^11187440 is an apocalyptic number.

11187440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11187440 is an abundant number, since it is smaller than the sum of its proper divisors (17190208).

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

11187440 is a wasteful number, since it uses less digits than its factorization.

11187440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12737 (or 12731 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 11187440 is about 3344.7630708318. The cubic root of 11187440 is about 223.6541218170.

It can be divided in two parts, 1118 and 7440, that added together give a palindrome (8558).

The spelling of 11187440 in words is "eleven million, one hundred eighty-seven thousand, four hundred forty".