340420434312 has 64 divisors (see below), whose sum is σ = 972751104000. Its totient is φ = 97250852160.

The previous prime is 340420434307. The next prime is 340420434337. The reversal of 340420434312 is 213434024043.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 340420434312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1270689 + ... + 1515087.

It is an arithmetic number, because the mean of its divisors is an integer number (15199236000).

Almost surely, 2^340420434312 is an apocalyptic number.

It is an amenable number.

340420434312 is an abundant number, since it is smaller than the sum of its proper divisors (632330669688).

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

340420434312 is a wasteful number, since it uses less digits than its factorization.

340420434312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252706 (or 252702 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 340420434312 its reverse (213434024043), we get a palindrome (553854458355).

The spelling of 340420434312 in words is "three hundred forty billion, four hundred twenty million, four hundred thirty-four thousand, three hundred twelve".