422143240423443 has 96 divisors (see below), whose sum is σ = 719772679065600. Its totient is φ = 217608800048640.

The previous prime is 422143240423409. The next prime is 422143240423447. The reversal of 422143240423443 is 344324042341224.

It is not a de Polignac number, because 422143240423443 - 2¹³ = 422143240415251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422143240423395 and 422143240423404.

It is not an unprimeable number, because it can be changed into a prime (422143240423447) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 564303630 + ... + 565051212.

It is an arithmetic number, because the mean of its divisors is an integer number (7497632073600).

Almost surely, 2^{422143240423443} is an apocalyptic number.

422143240423443 is a deficient number, since it is larger than the sum of its proper divisors (297629438642157).

422143240423443 is a wasteful number, since it uses less digits than its factorization.

422143240423443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750297 (or 750290 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 42.

Adding to 422143240423443 its reverse (344324042341224), we get a palindrome (766467282764667).

The spelling of 422143240423443 in words is "four hundred twenty-two trillion, one hundred forty-three billion, two hundred forty million, four hundred twenty-three thousand, four hundred forty-three".