1240317 has 12 divisors (see below), whose sum is σ = 1929564. Its totient is φ = 763200.

The previous prime is 1240307. The next prime is 1240319. The reversal of 1240317 is 7130421.

It can be written as a sum of positive squares in 2 ways, for example, as 622521 + 617796 = 789^2 + 786^2 .

It is not a de Polignac number, because 1240317 - 2¹¹ = 1238269 is a prime.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1240317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5184 + ... + 5417.

It is an arithmetic number, because the mean of its divisors is an integer number (160797).

2^1240317 is an apocalyptic number.

It is an amenable number.

1240317 is a deficient number, since it is larger than the sum of its proper divisors (689247).

1240317 is a wasteful number, since it uses less digits than its factorization.

1240317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10620 (or 10617 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1240317 is about 1113.6952006721. The cubic root of 1240317 is about 107.4428612880.

Adding to 1240317 its reverse (7130421), we get a palindrome (8370738).

The spelling of 1240317 in words is "one million, two hundred forty thousand, three hundred seventeen".