42031343444 has 12 divisors (see below), whose sum is σ = 74562452244. Its totient is φ = 20727785664.

The previous prime is 42031343407. The next prime is 42031343461. The reversal of 42031343444 is 44434313024.

It can be written as a sum of positive squares in 2 ways, for example, as 33475093444 + 8556250000 = 182962^2 + 92500^2 .

It is a super-2 number, since 2×42031343444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42031343444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71971187 + ... + 71971770.

It is an arithmetic number, because the mean of its divisors is an integer number (6213537687).

Almost surely, 2^42031343444 is an apocalyptic number.

It is an amenable number.

42031343444 is a deficient number, since it is larger than the sum of its proper divisors (32531108800).

42031343444 is a wasteful number, since it uses less digits than its factorization.

42031343444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143943034 (or 143943032 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 42031343444 its reverse (44434313024), we get a palindrome (86465656468).

The spelling of 42031343444 in words is "forty-two billion, thirty-one million, three hundred forty-three thousand, four hundred forty-four".