340230440420221 has 32 divisors (see below), whose sum is σ = 373259192768000. Its totient is φ = 310063769031744.

The previous prime is 340230440420207. The next prime is 340230440420329. The reversal of 340230440420221 is 122024044032043.

It is not a de Polignac number, because 340230440420221 - 2⁴³ = 331434347398013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340230440420201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3214854535 + ... + 3214960363.

It is an arithmetic number, because the mean of its divisors is an integer number (11664349774000).

Almost surely, 2^{340230440420221} is an apocalyptic number.

It is an amenable number.

340230440420221 is a deficient number, since it is larger than the sum of its proper divisors (33028752347779).

340230440420221 is a wasteful number, since it uses less digits than its factorization.

340230440420221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124470 (or 124444 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 340230440420221 its reverse (122024044032043), we get a palindrome (462254484452264).

The spelling of 340230440420221 in words is "three hundred forty trillion, two hundred thirty billion, four hundred forty million, four hundred twenty thousand, two hundred twenty-one".