42040241 has 4 divisors (see below), whose sum is σ = 42207984. Its totient is φ = 41872500.

The previous prime is 42040199. The next prime is 42040249. The reversal of 42040241 is 14204024.

42040241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42040241 - 2²² = 37845937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42040249) 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 3 ways as a sum of consecutive naturals, for example, 83495 + ... + 83996.

It is an arithmetic number, because the mean of its divisors is an integer number (10551996).

Almost surely, 2^42040241 is an apocalyptic number.

It is an amenable number.

42040241 is a deficient number, since it is larger than the sum of its proper divisors (167743).

42040241 is a wasteful number, since it uses less digits than its factorization.

42040241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167742.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42040241 is about 6483.8446156582. The cubic root of 42040241 is about 347.7136439636.

Adding to 42040241 its reverse (14204024), we get a palindrome (56244265).

The spelling of 42040241 in words is "forty-two million, forty thousand, two hundred forty-one".