40344220334321 has 8 divisors (see below), whose sum is σ = 41055877035264. Its totient is φ = 39637934627760.

The previous prime is 40344220334273. The next prime is 40344220334339. The reversal of 40344220334321 is 12343302244304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40344220334321 is a prime.

It is a super-2 number, since 2×40344220334321² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40344220304321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1342733441 + ... + 1342763486.

It is an arithmetic number, because the mean of its divisors is an integer number (5131984629408).

Almost surely, 2^{40344220334321} is an apocalyptic number.

It is an amenable number.

40344220334321 is a deficient number, since it is larger than the sum of its proper divisors (711656700943).

40344220334321 is a wasteful number, since it uses less digits than its factorization.

40344220334321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2685497191.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 40344220334321 its reverse (12343302244304), we get a palindrome (52687522578625).

The spelling of 40344220334321 in words is "forty trillion, three hundred forty-four billion, two hundred twenty million, three hundred thirty-four thousand, three hundred twenty-one".