1344503140 has 72 divisors (see below), whose sum is σ = 3011780520. Its totient is φ = 504066048.

The previous prime is 1344503117. The next prime is 1344503159. The reversal of 1344503140 is 413054431.

It can be written as a sum of positive squares in 12 ways, for example, as 55980324 + 1288522816 = 7482^2 + 35896^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2641206 + ... + 2641714.

It is an arithmetic number, because the mean of its divisors is an integer number (41830285).

Almost surely, 2^1344503140 is an apocalyptic number.

1344503140 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 1344503140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1505890260).

1344503140 is an abundant number, since it is smaller than the sum of its proper divisors (1667277380).

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

1344503140 is a wasteful number, since it uses less digits than its factorization.

1344503140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1344503140 is about 36667.4670518704. The cubic root of 1344503140 is about 1103.7073641960.

Adding to 1344503140 its reverse (413054431), we get a palindrome (1757557571).

The spelling of 1344503140 in words is "one billion, three hundred forty-four million, five hundred three thousand, one hundred forty".