42310042 has 16 divisors (see below), whose sum is σ = 67896360. Its totient is φ = 19703808.

The previous prime is 42310019. The next prime is 42310061. The reversal of 42310042 is 24001324.

It can be written as a sum of positive squares in 4 ways, for example, as 41718681 + 591361 = 6459^2 + 769^2 .

It is a junction number, because it is equal to n+sod(n) for n = 42309998 and 42310025.

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, 3117 + ... + 9712.

Almost surely, 2^42310042 is an apocalyptic number.

42310042 is a deficient number, since it is larger than the sum of its proper divisors (25586318).

42310042 is a wasteful number, since it uses less digits than its factorization.

42310042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12945.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 42310042 is about 6504.6169756566. The cubic root of 42310042 is about 348.4558971846.

Adding to 42310042 its reverse (24001324), we get a palindrome (66311366).

The spelling of 42310042 in words is "forty-two million, three hundred ten thousand, forty-two".