1340256055 has 8 divisors (see below), whose sum is σ = 1613480544. Its totient is φ = 1068756000.

The previous prime is 1340256053. The next prime is 1340256061. The reversal of 1340256055 is 5506520431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1340256055 - 2¹ = 1340256053 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 (1340256053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429396 + ... + 432505.

It is an arithmetic number, because the mean of its divisors is an integer number (201685068).

Almost surely, 2^1340256055 is an apocalyptic number.

1340256055 is a deficient number, since it is larger than the sum of its proper divisors (273224489).

1340256055 is an equidigital number, since it uses as much as digits as its factorization.

1340256055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862217.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 1340256055 is about 36609.5077131611. The cubic root of 1340256055 is about 1102.5439893459.

Adding to 1340256055 its reverse (5506520431), we get a palindrome (6846776486).

The spelling of 1340256055 in words is "one billion, three hundred forty million, two hundred fifty-six thousand, fifty-five".