42506005430 has 64 divisors (see below), whose sum is σ = 89007828480. Its totient is φ = 14312811264.

The previous prime is 42506005427. The next prime is 42506005447. The reversal of 42506005430 is 3450060524.

It is a junction number, because it is equal to n+sod(n) for n = 42506005393 and 42506005402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4922777 + ... + 4931403.

It is an arithmetic number, because the mean of its divisors is an integer number (1390747320).

Almost surely, 2^42506005430 is an apocalyptic number.

42506005430 is an abundant number, since it is smaller than the sum of its proper divisors (46501823050).

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

42506005430 is a wasteful number, since it uses less digits than its factorization.

42506005430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9893.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 42506005430 its reverse (3450060524), we get a palindrome (45956065954).

The spelling of 42506005430 in words is "forty-two billion, five hundred six million, five thousand, four hundred thirty".