340240134004220 has 96 divisors (see below), whose sum is σ = 765079056806400. Its totient is φ = 126643780296704.

The previous prime is 340240134004193. The next prime is 340240134004247. The reversal of 340240134004220 is 22400431042043.

It is an interprime number because it is at equal distance from previous prime (340240134004193) and next prime (340240134004247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531439061 + ... + 532078899.

It is an arithmetic number, because the mean of its divisors is an integer number (7969573508400).

Almost surely, 2^{340240134004220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 340240134004220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (382539528403200).

340240134004220 is an abundant number, since it is smaller than the sum of its proper divisors (424838922802180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340240134004220 is a wasteful number, since it uses less digits than its factorization.

340240134004220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657527 (or 657525 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 340240134004220 its reverse (22400431042043), we get a palindrome (362640565046263).

The spelling of 340240134004220 in words is "three hundred forty trillion, two hundred forty billion, one hundred thirty-four million, four thousand, two hundred twenty".