42240565420 has 24 divisors (see below), whose sum is σ = 89583460848. Its totient is φ = 16728936000.

The previous prime is 42240565403. The next prime is 42240565421. The reversal of 42240565420 is 2456504224.

It is not an unprimeable number, because it can be changed into a prime (42240565421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10453566 + ... + 10457605.

It is an arithmetic number, because the mean of its divisors is an integer number (3732644202).

Almost surely, 2^42240565420 is an apocalyptic number.

It is an amenable number.

42240565420 is an abundant number, since it is smaller than the sum of its proper divisors (47342895428).

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

42240565420 is a wasteful number, since it uses less digits than its factorization.

42240565420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20911281 (or 20911279 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 42240565420 in words is "forty-two billion, two hundred forty million, five hundred sixty-five thousand, four hundred twenty".