42110491 has 4 divisors (see below), whose sum is σ = 42133672. Its totient is φ = 42087312.

The previous prime is 42110489. The next prime is 42110503. The reversal of 42110491 is 19401124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42110491 - 2¹ = 42110489 is a prime.

It is a super-2 number, since 2×42110491² = 3546586904522162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42110891) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8610 + ... + 12583.

It is an arithmetic number, because the mean of its divisors is an integer number (10533418).

Almost surely, 2^42110491 is an apocalyptic number.

42110491 is a deficient number, since it is larger than the sum of its proper divisors (23181).

42110491 is a wasteful number, since it uses less digits than its factorization.

42110491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23180.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 42110491 is about 6489.2596650157. The cubic root of 42110491 is about 347.9072147711.

The spelling of 42110491 in words is "forty-two million, one hundred ten thousand, four hundred ninety-one".