1144340 has 24 divisors (see below), whose sum is σ = 2487240. Its totient is φ = 441728.

The previous prime is 1144333. The next prime is 1144343. The reversal of 1144340 is 434411.

It can be written as a sum of positive squares in 4 ways, for example, as 37636 + 1106704 = 194^2 + 1052^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407 + ... + 1566.

It is an arithmetic number, because the mean of its divisors is an integer number (103635).

2^1144340 is an apocalyptic number.

1144340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1144340 is an abundant number, since it is smaller than the sum of its proper divisors (1342900).

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

1144340 is a wasteful number, since it uses less digits than its factorization.

1144340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 2009 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1144340 is about 1069.7382857503. The cubic root of 1144340 is about 104.5967907354.

Adding to 1144340 its reverse (434411), we get a palindrome (1578751).

The spelling of 1144340 in words is "one million, one hundred forty-four thousand, three hundred forty".