422656443 has 24 divisors (see below), whose sum is σ = 668828160. Its totient is φ = 255069360.

The previous prime is 422656433. The next prime is 422656447. The reversal of 422656443 is 344656224.

422656443 is a `hidden beast` number, since 4 + 2 + 2 + 6 + 5 + 644 + 3 = 666.

It is not a de Polignac number, because 422656443 - 2⁴ = 422656427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422656398 and 422656407.

It is not an unprimeable number, because it can be changed into a prime (422656447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14730 + ... + 32592.

It is an arithmetic number, because the mean of its divisors is an integer number (27867840).

Almost surely, 2^422656443 is an apocalyptic number.

422656443 is a deficient number, since it is larger than the sum of its proper divisors (246171717).

422656443 is a wasteful number, since it uses less digits than its factorization.

422656443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18119 (or 18116 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 422656443 is about 20558.6099481458. The cubic root of 422656443 is about 750.4627917064.

The spelling of 422656443 in words is "four hundred twenty-two million, six hundred fifty-six thousand, four hundred forty-three".