1340704105 has 16 divisors (see below), whose sum is σ = 1742189904. Its totient is φ = 984579840.

The previous prime is 1340704097. The next prime is 1340704117. The reversal of 1340704105 is 5014070431.

It can be written as a sum of positive squares in 8 ways, for example, as 165791376 + 1174912729 = 12876^2 + 34277^2 .

It is not a de Polignac number, because 1340704105 - 2³ = 1340704097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1340704105.

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, 45214 + ... + 68743.

It is an arithmetic number, because the mean of its divisors is an integer number (108886869).

Almost surely, 2^1340704105 is an apocalyptic number.

It is an amenable number.

1340704105 is a deficient number, since it is larger than the sum of its proper divisors (401485799).

1340704105 is a wasteful number, since it uses less digits than its factorization.

1340704105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114156.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 1340704105 is about 36615.6265138260. The cubic root of 1340704105 is about 1102.6668364678. Note that the first 3 decimals are identical.

Adding to 1340704105 its reverse (5014070431), we get a palindrome (6354774536).

The spelling of 1340704105 in words is "one billion, three hundred forty million, seven hundred four thousand, one hundred five".