1340844 has 24 divisors (see below), whose sum is σ = 3237360. Its totient is φ = 431424.

The previous prime is 1340837. The next prime is 1340861. The reversal of 1340844 is 4480431.

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 in 7 ways as a sum of consecutive naturals, for example, 1579 + ... + 2274.

It is an arithmetic number, because the mean of its divisors is an integer number (134890).

2^1340844 is an apocalyptic number.

It is an amenable number.

1340844 is an abundant number, since it is smaller than the sum of its proper divisors (1896516).

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

1340844 is a wasteful number, since it uses less digits than its factorization.

1340844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889 (or 3887 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1340844 is about 1157.9481853693. The cubic root of 1340844 is about 110.2705187513.

The spelling of 1340844 in words is "one million, three hundred forty thousand, eight hundred forty-four".