343404421443 has 24 divisors (see below), whose sum is σ = 499641891840. Its totient is φ = 227274338160.

The previous prime is 343404421429. The next prime is 343404421447. The reversal of 343404421443 is 344124404343.

343404421443 is a `hidden beast` number, since 3 + 434 + 0 + 4 + 4 + 214 + 4 + 3 = 666.

It is not a de Polignac number, because 343404421443 - 2⁶ = 343404421379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 343404421398 and 343404421407.

It is not an unprimeable number, because it can be changed into a prime (343404421447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 482208 + ... + 958818.

It is an arithmetic number, because the mean of its divisors is an integer number (20818412160).

Almost surely, 2^343404421443 is an apocalyptic number.

343404421443 is a deficient number, since it is larger than the sum of its proper divisors (156237470397).

343404421443 is a wasteful number, since it uses less digits than its factorization.

343404421443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477199 (or 477196 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 343404421443 its reverse (344124404343), we get a palindrome (687528825786).

The spelling of 343404421443 in words is "three hundred forty-three billion, four hundred four million, four hundred twenty-one thousand, four hundred forty-three".