20042424439 has 8 divisors (see below), whose sum is σ = 20588282960. Its totient is φ = 19496785536.

The previous prime is 20042424433. The next prime is 20042424443. The reversal of 20042424439 is 93442424002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20042424439 - 2⁹ = 20042423927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042424433) 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, 139327 + ... + 243919.

It is an arithmetic number, because the mean of its divisors is an integer number (2573535370).

Almost surely, 2^20042424439 is an apocalyptic number.

20042424439 is a deficient number, since it is larger than the sum of its proper divisors (545858521).

20042424439 is a wasteful number, since it uses less digits than its factorization.

20042424439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109809.

The product of its (nonzero) digits is 55296, while the sum is 34.

The spelling of 20042424439 in words is "twenty billion, forty-two million, four hundred twenty-four thousand, four hundred thirty-nine".