42520345422 has 16 divisors (see below), whose sum is σ = 85243656960. Its totient is φ = 14139620792.

The previous prime is 42520345411. The next prime is 42520345429. The reversal of 42520345422 is 22454302524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520345429) 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, 8454198 + ... + 8459225.

It is an arithmetic number, because the mean of its divisors is an integer number (5327728560).

Almost surely, 2^42520345422 is an apocalyptic number.

42520345422 is an abundant number, since it is smaller than the sum of its proper divisors (42723311538).

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

42520345422 is a wasteful number, since it uses less digits than its factorization.

42520345422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16913847.

The product of its (nonzero) digits is 76800, while the sum is 33.

Adding to 42520345422 its reverse (22454302524), we get a palindrome (64974647946).

The spelling of 42520345422 in words is "forty-two billion, five hundred twenty million, three hundred forty-five thousand, four hundred twenty-two".