343421442405 has 12 divisors (see below), whose sum is σ = 595263833580. Its totient is φ = 183158102592.

The previous prime is 343421442373. The next prime is 343421442467. The reversal of 343421442405 is 504244124343.

343421442405 is a `hidden beast` number, since 3 + 4 + 34 + 214 + 4 + 2 + 405 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 160167243681 + 183254198724 = 400209^2 + 428082^2 .

It is not a de Polignac number, because 343421442405 - 2⁵ = 343421442373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 343421442405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3815793760 + ... + 3815793849.

It is an arithmetic number, because the mean of its divisors is an integer number (49605319465).

Almost surely, 2^343421442405 is an apocalyptic number.

It is an amenable number.

343421442405 is a deficient number, since it is larger than the sum of its proper divisors (251842391175).

343421442405 is a wasteful number, since it uses less digits than its factorization.

343421442405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7631587620 (or 7631587617 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 343421442405 its reverse (504244124343), we get a palindrome (847665566748).

The spelling of 343421442405 in words is "three hundred forty-three billion, four hundred twenty-one million, four hundred forty-two thousand, four hundred five".