422534421 has 16 divisors (see below), whose sum is σ = 628125120. Its totient is φ = 280722960.

The previous prime is 422534401. The next prime is 422534429. The reversal of 422534421 is 124435224.

It is not a de Polignac number, because 422534421 - 2⁵ = 422534389 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422534429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18795 + ... + 34616.

It is an arithmetic number, because the mean of its divisors is an integer number (39257820).

Almost surely, 2^422534421 is an apocalyptic number.

It is an amenable number.

422534421 is a deficient number, since it is larger than the sum of its proper divisors (205590699).

422534421 is a wasteful number, since it uses less digits than its factorization.

422534421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53713 (or 53707 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 422534421 is about 20555.6420721903. The cubic root of 422534421 is about 750.3905645771.

Adding to 422534421 its reverse (124435224), we get a palindrome (546969645).

The spelling of 422534421 in words is "four hundred twenty-two million, five hundred thirty-four thousand, four hundred twenty-one".