42442404031 has 8 divisors (see below), whose sum is σ = 43451432640. Its totient is φ = 41437792128.

The previous prime is 42442404013. The next prime is 42442404047. The reversal of 42442404031 is 13040424424.

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 42442404031 - 2³¹ = 40294920383 is a prime.

It is a super-2 number, since 2×42442404031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42442404131) 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, 1084726 + ... + 1123171.

It is an arithmetic number, because the mean of its divisors is an integer number (5431429080).

Almost surely, 2^42442404031 is an apocalyptic number.

42442404031 is a deficient number, since it is larger than the sum of its proper divisors (1009028609).

42442404031 is a wasteful number, since it uses less digits than its factorization.

42442404031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2208353.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 42442404031 its reverse (13040424424), we get a palindrome (55482828455).

The spelling of 42442404031 in words is "forty-two billion, four hundred forty-two million, four hundred four thousand, thirty-one".