422345023 has 4 divisors (see below), whose sum is σ = 435969088. Its totient is φ = 408720960.

The previous prime is 422345017. The next prime is 422345039. The reversal of 422345023 is 320543224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422345023 - 2⁹ = 422344511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422345723) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6811986 + ... + 6812047.

It is an arithmetic number, because the mean of its divisors is an integer number (108992272).

Almost surely, 2^422345023 is an apocalyptic number.

422345023 is a deficient number, since it is larger than the sum of its proper divisors (13624065).

422345023 is a wasteful number, since it uses less digits than its factorization.

422345023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13624064.

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 422345023 is about 20551.0345968275. The cubic root of 422345023 is about 750.2784287719.

Adding to 422345023 its reverse (320543224), we get a palindrome (742888247).

The spelling of 422345023 in words is "four hundred twenty-two million, three hundred forty-five thousand, twenty-three".