42242041 has 4 divisors (see below), whose sum is σ = 42267892. Its totient is φ = 42216192.

The previous prime is 42242033. The next prime is 42242047. The reversal of 42242041 is 14024224.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14899600 + 27342441 = 3860^2 + 5229^2 .

It is a cyclic number.

It is not a de Polignac number, because 42242041 - 2³ = 42242033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42242047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10296 + ... + 13801.

It is an arithmetic number, because the mean of its divisors is an integer number (10566973).

Almost surely, 2^42242041 is an apocalyptic number.

It is an amenable number.

42242041 is a deficient number, since it is larger than the sum of its proper divisors (25851).

42242041 is a wasteful number, since it uses less digits than its factorization.

42242041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25850.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 42242041 is about 6499.3877403952. The cubic root of 42242041 is about 348.2691168197.

Adding to 42242041 its reverse (14024224), we get a palindrome (56266265).

The spelling of 42242041 in words is "forty-two million, two hundred forty-two thousand, forty-one".