1340346843 has 24 divisors (see below), whose sum is σ = 2124734976. Its totient is φ = 807457200.

The previous prime is 1340346841. The next prime is 1340346863. The reversal of 1340346843 is 3486430431.

It is a happy number.

It is not a de Polignac number, because 1340346843 - 2¹ = 1340346841 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1340346798 and 1340346807.

It is not an unprimeable number, because it can be changed into a prime (1340346841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24003 + ... + 57068.

It is an arithmetic number, because the mean of its divisors is an integer number (88530624).

Almost surely, 2^1340346843 is an apocalyptic number.

1340346843 is a deficient number, since it is larger than the sum of its proper divisors (784388133).

1340346843 is a wasteful number, since it uses less digits than its factorization.

1340346843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81255 (or 81252 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 1340346843 is about 36610.7476432809. The cubic root of 1340346843 is about 1102.5688839679.

The spelling of 1340346843 in words is "one billion, three hundred forty million, three hundred forty-six thousand, eight hundred forty-three".