42111442 has 8 divisors (see below), whose sum is σ = 63495036. Its totient is φ = 20946432.

The previous prime is 42111409. The next prime is 42111473. The reversal of 42111442 is 24411124.

It can be written as a sum of positive squares in 2 ways, for example, as 40947201 + 1164241 = 6399^2 + 1079^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54163 + ... + 54934.

Almost surely, 2^42111442 is an apocalyptic number.

42111442 is a deficient number, since it is larger than the sum of its proper divisors (21383594).

42111442 is a wasteful number, since it uses less digits than its factorization.

42111442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109292.

The product of its digits is 256, while the sum is 19.

The square root of 42111442 is about 6489.3329395247. The cubic root of 42111442 is about 347.9098337326.

Adding to 42111442 its reverse (24411124), we get a palindrome (66522566).

The spelling of 42111442 in words is "forty-two million, one hundred eleven thousand, four hundred forty-two".