340434300403 has 4 divisors (see below), whose sum is σ = 352173414240. Its totient is φ = 328695186568.

The previous prime is 340434300397. The next prime is 340434300413. The reversal of 340434300403 is 304003434043.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304003434043 = 59 ⋅5152600577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340434300403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (340434300413) 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, 5869556875 + ... + 5869556932.

It is an arithmetic number, because the mean of its divisors is an integer number (88043353560).

Almost surely, 2^340434300403 is an apocalyptic number.

340434300403 is a deficient number, since it is larger than the sum of its proper divisors (11739113837).

340434300403 is a wasteful number, since it uses less digits than its factorization.

340434300403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11739113836.

The product of its (nonzero) digits is 20736, while the sum is 28.

Adding to 340434300403 its reverse (304003434043), we get a palindrome (644437734446).

The spelling of 340434300403 in words is "three hundred forty billion, four hundred thirty-four million, three hundred thousand, four hundred three".