422420400023 has 4 divisors (see below), whose sum is σ = 429580067880. Its totient is φ = 415260732168.

The previous prime is 422420400001. The next prime is 422420400091. The reversal of 422420400023 is 320004024224.

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 422420400023 - 2⁶ = 422420399959 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 (422420400323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3579833840 + ... + 3579833957.

It is an arithmetic number, because the mean of its divisors is an integer number (107395016970).

Almost surely, 2^422420400023 is an apocalyptic number.

422420400023 is a deficient number, since it is larger than the sum of its proper divisors (7159667857).

422420400023 is an equidigital number, since it uses as much as digits as its factorization.

422420400023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159667856.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 422420400023 its reverse (320004024224), we get a palindrome (742424424247).

The spelling of 422420400023 in words is "four hundred twenty-two billion, four hundred twenty million, four hundred thousand, twenty-three".