1340361 has 16 divisors (see below), whose sum is σ = 2166720. Its totient is φ = 812160.

The previous prime is 1340359. The next prime is 1340363. The reversal of 1340361 is 1630431.

It is an interprime number because it is at equal distance from previous prime (1340359) and next prime (1340363).

It is not a de Polignac number, because 1340361 - 2¹ = 1340359 is a prime.

It is a super-2 number, since 2×1340361² = 3593135220642, which contains 22 as substring.

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

1340361 is a lucky 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1960 + ... + 2553.

It is an arithmetic number, because the mean of its divisors is an integer number (135420).

2^1340361 is an apocalyptic number.

1340361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1340361 is a deficient number, since it is larger than the sum of its proper divisors (826359).

1340361 is a wasteful number, since it uses less digits than its factorization.

1340361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4533 (or 4527 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1340361 is about 1157.7396080294. The cubic root of 1340361 is about 110.2572765802.

Adding to 1340361 its reverse (1630431), we get a palindrome (2970792).

The spelling of 1340361 in words is "one million, three hundred forty thousand, three hundred sixty-one".