340400004243344 has 20 divisors (see below), whose sum is σ = 659526978440460. Its totient is φ = 170199493678080.

The previous prime is 340400004243281. The next prime is 340400004243349. The reversal of 340400004243344 is 443342400004043.

It can be written as a sum of positive squares in 2 ways, for example, as 242848588960000 + 97551415283344 = 15583600^2 + 9876812^2 .

It is a super-2 number, since 2×340400004243344² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (340400004243349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26224997 + ... + 36993924.

It is an arithmetic number, because the mean of its divisors is an integer number (32976348922023).

Almost surely, 2^{340400004243344} is an apocalyptic number.

It is an amenable number.

340400004243344 is a deficient number, since it is larger than the sum of its proper divisors (319126974197116).

340400004243344 is a wasteful number, since it uses less digits than its factorization.

340400004243344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63555458 (or 63555452 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 35.

Adding to 340400004243344 its reverse (443342400004043), we get a palindrome (783742404247387).

The spelling of 340400004243344 in words is "three hundred forty trillion, four hundred billion, four million, two hundred forty-three thousand, three hundred forty-four".