1340256411 has 12 divisors (see below), whose sum is σ = 2084843488. Its totient is φ = 824773104.

The previous prime is 1340256397. The next prime is 1340256413. The reversal of 1340256411 is 1146520431.

It is a happy number.

1340256411 is a `hidden beast` number, since 13 + 4 + 0 + 2 + 5 + 641 + 1 = 666.

It is not a de Polignac number, because 1340256411 - 2²¹ = 1338159259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1340256413) 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 11 ways as a sum of consecutive naturals, for example, 5727475 + ... + 5727708.

Almost surely, 2^1340256411 is an apocalyptic number.

1340256411 is a deficient number, since it is larger than the sum of its proper divisors (744587077).

1340256411 is a wasteful number, since it uses less digits than its factorization.

1340256411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11455202 (or 11455199 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1340256411 is about 36609.5125752857. The cubic root of 1340256411 is about 1102.5440869655.

Adding to 1340256411 its reverse (1146520431), we get a palindrome (2486776842).

The spelling of 1340256411 in words is "one billion, three hundred forty million, two hundred fifty-six thousand, four hundred eleven".