11344140 has 144 divisors (see below), whose sum is σ = 37739520. Its totient is φ = 2747520.

The previous prime is 11344103. The next prime is 11344141. The reversal of 11344140 is 4144311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11344141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 105967 + ... + 106073.

It is an arithmetic number, because the mean of its divisors is an integer number (262080).

Almost surely, 2^11344140 is an apocalyptic number.

11344140 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 11344140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18869760).

11344140 is an abundant number, since it is smaller than the sum of its proper divisors (26395380).

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

11344140 is a wasteful number, since it uses less digits than its factorization.

11344140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 11344140 is about 3368.1062928595. The cubic root of 11344140 is about 224.6935086179.

Adding to 11344140 its reverse (4144311), we get a palindrome (15488451).

It can be divided in two parts, 113 and 44140, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 11344140 in words is "eleven million, three hundred forty-four thousand, one hundred forty".