1340038780258 has 16 divisors (see below), whose sum is σ = 2080137212280. Its totient is φ = 646676747136.

The previous prime is 1340038780253. The next prime is 1340038780273. The reversal of 1340038780258 is 8520878300431.

It can be written as a sum of positive squares in 4 ways, for example, as 1100092615609 + 239946164649 = 1048853^2 + 489843^2 .

It is not an unprimeable number, because it can be changed into a prime (1340038780253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4100685 + ... + 4415392.

Almost surely, 2^{1340038780258} is an apocalyptic number.

1340038780258 is a deficient number, since it is larger than the sum of its proper divisors (740098432022).

1340038780258 is a wasteful number, since it uses less digits than its factorization.

1340038780258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8518821.

The product of its (nonzero) digits is 1290240, while the sum is 49.

The spelling of 1340038780258 in words is "one trillion, three hundred forty billion, thirty-eight million, seven hundred eighty thousand, two hundred fifty-eight".