422542524 has 48 divisors (see below), whose sum is σ = 1025289216. Its totient is φ = 135292800.

The previous prime is 422542517. The next prime is 422542529. The reversal of 422542524 is 425245224.

It is a junction number, because it is equal to n+sod(n) for n = 422542491 and 422542500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422542529) 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, 46819 + ... + 55109.

It is an arithmetic number, because the mean of its divisors is an integer number (21360192).

Almost surely, 2^422542524 is an apocalyptic number.

It is an amenable number.

422542524 is an abundant number, since it is smaller than the sum of its proper divisors (602746692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422542524 is a wasteful number, since it uses less digits than its factorization.

422542524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8466 (or 8464 counting only the distinct ones).

The product of its digits is 25600, while the sum is 30.

The square root of 422542524 is about 20555.8391704158. The cubic root of 422542524 is about 750.3953613271.

Adding to 422542524 its reverse (425245224), we get a palindrome (847787748).

The spelling of 422542524 in words is "four hundred twenty-two million, five hundred forty-two thousand, five hundred twenty-four".