42111044 has 12 divisors (see below), whose sum is σ = 75085164. Its totient is φ = 20658144.

The previous prime is 42111007. The next prime is 42111053. The reversal of 42111044 is 44011124.

It can be written as a sum of positive squares in 2 ways, for example, as 29593600 + 12517444 = 5440^2 + 3538^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99107 + ... + 99530.

It is an arithmetic number, because the mean of its divisors is an integer number (6257097).

Almost surely, 2^42111044 is an apocalyptic number.

It is an amenable number.

42111044 is a deficient number, since it is larger than the sum of its proper divisors (32974120).

42111044 is a wasteful number, since it uses less digits than its factorization.

42111044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198694 (or 198692 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 42111044 is about 6489.3022737425. The cubic root of 42111044 is about 347.9087376841.

Adding to 42111044 its reverse (44011124), we get a palindrome (86122168).

The spelling of 42111044 in words is "forty-two million, one hundred eleven thousand, forty-four".