42220041 has 4 divisors (see below), whose sum is σ = 56293392. Its totient is φ = 28146692.

The previous prime is 42219979. The next prime is 42220081. The reversal of 42220041 is 14002224.

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 42220041 - 2⁷ = 42219913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42220041.

It is not an unprimeable number, because it can be changed into a prime (42220081) 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, 7036671 + ... + 7036676.

It is an arithmetic number, because the mean of its divisors is an integer number (14073348).

Almost surely, 2^42220041 is an apocalyptic number.

It is an amenable number.

42220041 is a deficient number, since it is larger than the sum of its proper divisors (14073351).

42220041 is a wasteful number, since it uses less digits than its factorization.

42220041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14073350.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 42220041 is about 6497.6950528630. The cubic root of 42220041 is about 348.2086458536.

Adding to 42220041 its reverse (14002224), we get a palindrome (56222265).

The spelling of 42220041 in words is "forty-two million, two hundred twenty thousand, forty-one".