42107918 has 8 divisors (see below), whose sum is σ = 63250248. Its totient is φ = 21024504.

The previous prime is 42107867. The next prime is 42107921. The reversal of 42107918 is 81970124.

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

It is a congruent number.

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, 12896 + ... + 15827.

It is an arithmetic number, because the mean of its divisors is an integer number (7906281).

Almost surely, 2^42107918 is an apocalyptic number.

42107918 is a deficient number, since it is larger than the sum of its proper divisors (21142330).

42107918 is a wasteful number, since it uses less digits than its factorization.

42107918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29458.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 42107918 is about 6489.0614113291. The cubic root of 42107918 is about 347.9001287815.

The spelling of 42107918 in words is "forty-two million, one hundred seven thousand, nine hundred eighteen".