11144440 has 16 divisors (see below), whose sum is σ = 25075080. Its totient is φ = 4457760.

The previous prime is 11144429. The next prime is 11144447. The reversal of 11144440 is 4444111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11144447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139266 + ... + 139345.

Almost surely, 2^11144440 is an apocalyptic number.

11144440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11144440 is an abundant number, since it is smaller than the sum of its proper divisors (13930640).

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

11144440 is a wasteful number, since it uses less digits than its factorization.

11144440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278622 (or 278618 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 11144440 is about 3338.3289232788. The cubic root of 11144440 is about 223.3672085444.

Adding to 11144440 its reverse (4444111), we get a palindrome (15588551).

It can be divided in two parts, 111 and 44440, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 11144440 in words is "eleven million, one hundred forty-four thousand, four hundred forty".