6340426223 has 4 divisors (see below), whose sum is σ = 6559061640. Its totient is φ = 6121790808.

The previous prime is 6340426207. The next prime is 6340426231. The reversal of 6340426223 is 3226240436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6340426223 - 2⁴ = 6340426207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6340426223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6340426423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109317665 + ... + 109317722.

It is an arithmetic number, because the mean of its divisors is an integer number (1639765410).

Almost surely, 2^6340426223 is an apocalyptic number.

6340426223 is a deficient number, since it is larger than the sum of its proper divisors (218635417).

6340426223 is a wasteful number, since it uses less digits than its factorization.

6340426223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218635416.

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 6340426223 is about 79626.7933738387. The cubic root of 6340426223 is about 1850.8567955319.

Adding to 6340426223 its reverse (3226240436), we get a palindrome (9566666659).

The spelling of 6340426223 in words is "six billion, three hundred forty million, four hundred twenty-six thousand, two hundred twenty-three".