42116438 has 16 divisors (see below), whose sum is σ = 77753760. Its totient is φ = 16661376.

The previous prime is 42116423. The next prime is 42116461. The reversal of 42116438 is 83461124.

It is a self number, because there is not a number n which added to its sum of digits gives 42116438.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115523 + ... + 115886.

It is an arithmetic number, because the mean of its divisors is an integer number (4859610).

Almost surely, 2^42116438 is an apocalyptic number.

42116438 is a deficient number, since it is larger than the sum of its proper divisors (35637322).

42116438 is a wasteful number, since it uses less digits than its factorization.

42116438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231431.

The product of its digits is 4608, while the sum is 29.

The square root of 42116438 is about 6489.7178675194. The cubic root of 42116438 is about 347.9235915833.

The spelling of 42116438 in words is "forty-two million, one hundred sixteen thousand, four hundred thirty-eight".