42042711 has 4 divisors (see below), whose sum is σ = 56056952. Its totient is φ = 28028472.

The previous prime is 42042703. The next prime is 42042719. The reversal of 42042711 is 11724024.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (42042703) and next prime (42042719).

It is not a de Polignac number, because 42042711 - 2³ = 42042703 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 (42042719) 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, 7007116 + ... + 7007121.

It is an arithmetic number, because the mean of its divisors is an integer number (14014238).

Almost surely, 2^42042711 is an apocalyptic number.

42042711 is a deficient number, since it is larger than the sum of its proper divisors (14014241).

42042711 is a wasteful number, since it uses less digits than its factorization.

42042711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014240.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 42042711 is about 6484.0350862715. The cubic root of 42042711 is about 347.7204535970.

Adding to 42042711 its reverse (11724024), we get a palindrome (53766735).

The spelling of 42042711 in words is "forty-two million, forty-two thousand, seven hundred eleven".