11444540 has 24 divisors (see below), whose sum is σ = 24110352. Its totient is φ = 4563200.

The previous prime is 11444539. The next prime is 11444551. The reversal of 11444540 is 4544411.

It is a happy number.

11444540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 7307 + ... + 8733.

It is an arithmetic number, because the mean of its divisors is an integer number (1004598).

Almost surely, 2^11444540 is an apocalyptic number.

11444540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11444540 is an abundant number, since it is smaller than the sum of its proper divisors (12665812).

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

11444540 is a wasteful number, since it uses less digits than its factorization.

11444540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1837 (or 1835 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 11444540 is about 3382.9779780542. The cubic root of 11444540 is about 225.3544372549.

Adding to 11444540 its reverse (4544411), we get a palindrome (15988951).

The spelling of 11444540 in words is "eleven million, four hundred forty-four thousand, five hundred forty".