42404220039 has 4 divisors (see below), whose sum is σ = 56538960056. Its totient is φ = 28269480024.

The previous prime is 42404220031. The next prime is 42404220097. The reversal of 42404220039 is 93002240424.

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

It is not a de Polignac number, because 42404220039 - 2³ = 42404220031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42404219988 and 42404220015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42404220031) 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, 7067370004 + ... + 7067370009.

It is an arithmetic number, because the mean of its divisors is an integer number (14134740014).

Almost surely, 2^42404220039 is an apocalyptic number.

42404220039 is a deficient number, since it is larger than the sum of its proper divisors (14134740017).

42404220039 is a wasteful number, since it uses less digits than its factorization.

42404220039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14134740016.

The product of its (nonzero) digits is 13824, while the sum is 30.

The spelling of 42404220039 in words is "forty-two billion, four hundred four million, two hundred twenty thousand, thirty-nine".