42043611 has 4 divisors (see below), whose sum is σ = 56058152. Its totient is φ = 28029072.

The previous prime is 42043597. The next prime is 42043621. The reversal of 42043611 is 11634024.

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

It is not a de Polignac number, because 42043611 - 2⁷ = 42043483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42043621) 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, 7007266 + ... + 7007271.

It is an arithmetic number, because the mean of its divisors is an integer number (14014538).

Almost surely, 2^42043611 is an apocalyptic number.

42043611 is a deficient number, since it is larger than the sum of its proper divisors (14014541).

42043611 is a wasteful number, since it uses less digits than its factorization.

42043611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014540.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42043611 is about 6484.1044871285. The cubic root of 42043611 is about 347.7229347736.

Adding to 42043611 its reverse (11634024), we get a palindrome (53677635).

The spelling of 42043611 in words is "forty-two million, forty-three thousand, six hundred eleven".