42242031442 has 16 divisors (see below), whose sum is σ = 68350692312. Its totient is φ = 19463875200.

The previous prime is 42242031413. The next prime is 42242031451. The reversal of 42242031442 is 24413024224.

It can be written as a sum of positive squares in 4 ways, for example, as 30944679921 + 11297351521 = 175911^2 + 106289^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42242031442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336033 + ... + 1367284.

Almost surely, 2^42242031442 is an apocalyptic number.

42242031442 is a deficient number, since it is larger than the sum of its proper divisors (26108660870).

42242031442 is a wasteful number, since it uses less digits than its factorization.

42242031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703933.

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

Adding to 42242031442 its reverse (24413024224), we get a palindrome (66655055666).

The spelling of 42242031442 in words is "forty-two billion, two hundred forty-two million, thirty-one thousand, four hundred forty-two".