422420523 has 24 divisors (see below), whose sum is σ = 658336320. Its totient is φ = 240221520.

The previous prime is 422420503. The next prime is 422420533. The reversal of 422420523 is 325024224.

It is a happy number.

It is not a de Polignac number, because 422420523 - 2⁵ = 422420491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422420493 and 422420502.

It is not an unprimeable number, because it can be changed into a prime (422420503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24208 + ... + 37826.

It is an arithmetic number, because the mean of its divisors is an integer number (27430680).

Almost surely, 2^422420523 is an apocalyptic number.

422420523 is a deficient number, since it is larger than the sum of its proper divisors (235915797).

422420523 is a wasteful number, since it uses less digits than its factorization.

422420523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13847 (or 13840 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 422420523 is about 20552.8714052319. The cubic root of 422420523 is about 750.3231336484.

Adding to 422420523 its reverse (325024224), we get a palindrome (747444747).

The spelling of 422420523 in words is "four hundred twenty-two million, four hundred twenty thousand, five hundred twenty-three".