42424021224 has 48 divisors (see below), whose sum is σ = 123736731300. Its totient is φ = 13053544704.

The previous prime is 42424021217. The next prime is 42424021229. The reversal of 42424021224 is 42212042424.

42424021224 is a `hidden beast` number, since 4 + 2 + 424 + 0 + 212 + 24 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41848884900 + 575136324 = 204570^2 + 23982^2 .

It is not an unprimeable number, because it can be changed into a prime (42424021229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22661469 + ... + 22663340.

Almost surely, 2^42424021224 is an apocalyptic number.

It is an amenable number.

42424021224 is an abundant number, since it is smaller than the sum of its proper divisors (81312710076).

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

42424021224 is a wasteful number, since it uses less digits than its factorization.

42424021224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45324834 (or 45324827 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 27.

Adding to 42424021224 its reverse (42212042424), we get a palindrome (84636063648).

The spelling of 42424021224 in words is "forty-two billion, four hundred twenty-four million, twenty-one thousand, two hundred twenty-four".