1340275218 has 32 divisors (see below), whose sum is σ = 2742660864. Its totient is φ = 436442112.

The previous prime is 1340275201. The next prime is 1340275229. The reversal of 1340275218 is 8125720431.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 158596 + ... + 166832.

It is an arithmetic number, because the mean of its divisors is an integer number (85708152).

Almost surely, 2^1340275218 is an apocalyptic number.

1340275218 is an abundant number, since it is smaller than the sum of its proper divisors (1402385646).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1340275218 is a wasteful number, since it uses less digits than its factorization.

1340275218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8866.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1340275218 is about 36609.7694338547. The cubic root of 1340275218 is about 1102.5492440507.

Adding to 1340275218 its reverse (8125720431), we get a palindrome (9465995649).

The spelling of 1340275218 in words is "one billion, three hundred forty million, two hundred seventy-five thousand, two hundred eighteen".