1340344 has 8 divisors (see below), whose sum is σ = 2513160. Its totient is φ = 670168.

The previous prime is 1340333. The next prime is 1340357. The reversal of 1340344 is 4430431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83764 + ... + 83779.

It is an arithmetic number, because the mean of its divisors is an integer number (314145).

2^1340344 is an apocalyptic number.

It is an amenable number.

1340344 is a deficient number, since it is larger than the sum of its proper divisors (1172816).

1340344 is a wasteful number, since it uses less digits than its factorization.

1340344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167549 (or 167545 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1340344 is about 1157.7322661134. The cubic root of 1340344 is about 110.2568104417.

Adding to 1340344 its reverse (4430431), we get a palindrome (5770775).

The spelling of 1340344 in words is "one million, three hundred forty thousand, three hundred forty-four".