42405424241 has 4 divisors (see below), whose sum is σ = 43773341184. Its totient is φ = 41037507300.

The previous prime is 42405424211. The next prime is 42405424253. The reversal of 42405424241 is 14242450424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42405424241 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42405424198 and 42405424207.

It is not an unprimeable number, because it can be changed into a prime (42405424211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683958425 + ... + 683958486.

It is an arithmetic number, because the mean of its divisors is an integer number (10943335296).

Almost surely, 2^42405424241 is an apocalyptic number.

It is an amenable number.

42405424241 is a deficient number, since it is larger than the sum of its proper divisors (1367916943).

42405424241 is a wasteful number, since it uses less digits than its factorization.

42405424241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367916942.

The product of its (nonzero) digits is 40960, while the sum is 32.

Adding to 42405424241 its reverse (14242450424), we get a palindrome (56647874665).

The spelling of 42405424241 in words is "forty-two billion, four hundred five million, four hundred twenty-four thousand, two hundred forty-one".