42116538 has 16 divisors (see below), whose sum is σ = 86950656. Its totient is φ = 13585920.

The previous prime is 42116537. The next prime is 42116563. The reversal of 42116538 is 83561124.

It is not an unprimeable number, because it can be changed into a prime (42116533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113031 + ... + 113402.

It is an arithmetic number, because the mean of its divisors is an integer number (5434416).

Almost surely, 2^42116538 is an apocalyptic number.

42116538 is an abundant number, since it is smaller than the sum of its proper divisors (44834118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42116538 is a wasteful number, since it uses less digits than its factorization.

42116538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226469.

The product of its digits is 5760, while the sum is 30.

The square root of 42116538 is about 6489.7255720100. The cubic root of 42116538 is about 347.9238669495.

The spelling of 42116538 in words is "forty-two million, one hundred sixteen thousand, five hundred thirty-eight".