42110391 has 8 divisors (see below), whose sum is σ = 56256640. Its totient is φ = 28018872.

The previous prime is 42110389. The next prime is 42110399. The reversal of 42110391 is 19301124.

42110391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42110391 - 2¹ = 42110389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42110399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11851 + ... + 14988.

It is an arithmetic number, because the mean of its divisors is an integer number (7032080).

Almost surely, 2^42110391 is an apocalyptic number.

42110391 is a deficient number, since it is larger than the sum of its proper divisors (14146249).

42110391 is a wasteful number, since it uses less digits than its factorization.

42110391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27365.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 42110391 is about 6489.2519599720. The cubic root of 42110391 is about 347.9069393785.

The spelling of 42110391 in words is "forty-two million, one hundred ten thousand, three hundred ninety-one".