11444140 has 12 divisors (see below), whose sum is σ = 24032736. Its totient is φ = 4577648.

The previous prime is 11444129. The next prime is 11444143. The reversal of 11444140 is 4144411.

It is not an unprimeable number, because it can be changed into a prime (11444143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286084 + ... + 286123.

It is an arithmetic number, because the mean of its divisors is an integer number (2002728).

Almost surely, 2^11444140 is an apocalyptic number.

11444140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11444140 is an abundant number, since it is smaller than the sum of its proper divisors (12588596).

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

11444140 is a wasteful number, since it uses less digits than its factorization.

11444140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572216 (or 572214 counting only the distinct ones).

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

The square root of 11444140 is about 3382.9188580278. The cubic root of 11444140 is about 225.3518117576.

Adding to 11444140 its reverse (4144411), we get a palindrome (15588551).

It can be divided in two parts, 114441 and 40, that added together give a triangular number (114481 = T₄₇₈).

The spelling of 11444140 in words is "eleven million, four hundred forty-four thousand, one hundred forty".