42208241 has 4 divisors (see below), whose sum is σ = 43189872. Its totient is φ = 41226612.

The previous prime is 42208237. The next prime is 42208247. The reversal of 42208241 is 14280224.

It is a happy number.

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 42208241 - 2² = 42208237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42208247) 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, 490751 + ... + 490836.

It is an arithmetic number, because the mean of its divisors is an integer number (10797468).

Almost surely, 2^42208241 is an apocalyptic number.

It is an amenable number.

42208241 is a deficient number, since it is larger than the sum of its proper divisors (981631).

42208241 is an equidigital number, since it uses as much as digits as its factorization.

42208241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981630.

The product of its (nonzero) digits is 1024, while the sum is 23.

The square root of 42208241 is about 6496.7869751132. The cubic root of 42208241 is about 348.1762027707.

Adding to 42208241 its reverse (14280224), we get a palindrome (56488465).

The spelling of 42208241 in words is "forty-two million, two hundred eight thousand, two hundred forty-one".