42404224243 has 4 divisors (see below), whose sum is σ = 42418915120. Its totient is φ = 42389533368.

The previous prime is 42404224217. The next prime is 42404224253. The reversal of 42404224243 is 34242240424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42404224243 - 2²¹ = 42402127091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42404224253) 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, 7341108 + ... + 7346881.

It is an arithmetic number, because the mean of its divisors is an integer number (10604728780).

Almost surely, 2^42404224243 is an apocalyptic number.

42404224243 is a deficient number, since it is larger than the sum of its proper divisors (14690877).

42404224243 is a wasteful number, since it uses less digits than its factorization.

42404224243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14690876.

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 42404224243 its reverse (34242240424), we get a palindrome (76646464667).

The spelling of 42404224243 in words is "forty-two billion, four hundred four million, two hundred twenty-four thousand, two hundred forty-three".