42111538 has 16 divisors (see below), whose sum is σ = 74681280. Its totient is φ = 17425296.

The previous prime is 42111529. The next prime is 42111541. The reversal of 42111538 is 83511124.

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, 51456 + ... + 52267.

It is an arithmetic number, because the mean of its divisors is an integer number (4667580).

Almost surely, 2^42111538 is an apocalyptic number.

42111538 is a deficient number, since it is larger than the sum of its proper divisors (32569742).

42111538 is a wasteful number, since it uses less digits than its factorization.

42111538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103761.

The product of its digits is 960, while the sum is 25.

The square root of 42111538 is about 6489.3403362746. The cubic root of 42111538 is about 347.9100981051.

The spelling of 42111538 in words is "forty-two million, one hundred eleven thousand, five hundred thirty-eight".