20240442420439 has 16 divisors (see below), whose sum is σ = 21815574842880. Its totient is φ = 18721538730720.

The previous prime is 20240442420421. The next prime is 20240442420467. The reversal of 20240442420439 is 93402424404202.

It is a cyclic number.

It is not a de Polignac number, because 20240442420439 - 2¹³ = 20240442412247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20240442420139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72696172 + ... + 72974065.

It is an arithmetic number, because the mean of its divisors is an integer number (1363473427680).

Almost surely, 2^{20240442420439} is an apocalyptic number.

20240442420439 is a deficient number, since it is larger than the sum of its proper divisors (1575132422441).

20240442420439 is a wasteful number, since it uses less digits than its factorization.

20240442420439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145670430.

The product of its (nonzero) digits is 442368, while the sum is 40.

The spelling of 20240442420439 in words is "twenty trillion, two hundred forty billion, four hundred forty-two million, four hundred twenty thousand, four hundred thirty-nine".