1340365 has 16 divisors (see below), whose sum is σ = 1835568. Its totient is φ = 930816.

The previous prime is 1340363. The next prime is 1340369. The reversal of 1340365 is 5630431.

It can be written as a sum of positive squares in 8 ways, for example, as 212521 + 1127844 = 461^2 + 1062^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340365 - 2¹ = 1340363 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (114723).

2^1340365 is an apocalyptic number.

It is an amenable number.

1340365 is a deficient number, since it is larger than the sum of its proper divisors (495203).

1340365 is a wasteful number, since it uses less digits than its factorization.

1340365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1340365 is about 1157.7413355323. The cubic root of 1340365 is about 110.2573862593.

Adding to 1340365 its reverse (5630431), we get a palindrome (6970796).

The spelling of 1340365 in words is "one million, three hundred forty thousand, three hundred sixty-five".