1340755 has 8 divisors (see below), whose sum is σ = 1732752. Its totient is φ = 990048.

The previous prime is 1340753. The next prime is 1340761. The reversal of 1340755 is 5570431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1340755 - 2¹ = 1340753 is a prime.

It is a Duffinian number.

1340755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1340753) by changing a digit.

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, 10249 + ... + 10378.

It is an arithmetic number, because the mean of its divisors is an integer number (216594).

2^1340755 is an apocalyptic number.

1340755 is a deficient number, since it is larger than the sum of its proper divisors (391997).

1340755 is a wasteful number, since it uses less digits than its factorization.

1340755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20645.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 1340755 is about 1157.9097546873. The cubic root of 1340755 is about 110.2680789216.

The spelling of 1340755 in words is "one million, three hundred forty thousand, seven hundred fifty-five".