1340144322 has 64 divisors (see below), whose sum is σ = 3030663168. Its totient is φ = 391392000.

The previous prime is 1340144303. The next prime is 1340144341. The reversal of 1340144322 is 2234410431.

It is an interprime number because it is at equal distance from previous prime (1340144303) and next prime (1340144341).

It is a junction number, because it is equal to n+sod(n) for n = 1340144292 and 1340144301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 553258 + ... + 555674.

It is an arithmetic number, because the mean of its divisors is an integer number (47354112).

Almost surely, 2^1340144322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340144322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515331584).

1340144322 is an abundant number, since it is smaller than the sum of its proper divisors (1690518846).

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

1340144322 is a wasteful number, since it uses less digits than its factorization.

1340144322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2735.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1340144322 is about 36607.9816706685. The cubic root of 1340144322 is about 1102.5133499342.

Adding to 1340144322 its reverse (2234410431), we get a palindrome (3574554753).

The spelling of 1340144322 in words is "one billion, three hundred forty million, one hundred forty-four thousand, three hundred twenty-two".