42210241 has 4 divisors (see below), whose sum is σ = 42345412. Its totient is φ = 42075072.

The previous prime is 42210239. The next prime is 42210247. The reversal of 42210241 is 14201224.

42210241 is nontrivially palindromic in base 13.

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 1199025 + 41011216 = 1095^2 + 6404^2 .

It is a cyclic number.

It is not a de Polignac number, because 42210241 - 2¹ = 42210239 is a prime.

It is a super-3 number, since 3×42210241³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42210247) 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, 67116 + ... + 67741.

It is an arithmetic number, because the mean of its divisors is an integer number (10586353).

Almost surely, 2^42210241 is an apocalyptic number.

It is an amenable number.

42210241 is a deficient number, since it is larger than the sum of its proper divisors (135171).

42210241 is a wasteful number, since it uses less digits than its factorization.

42210241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135170.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 42210241 is about 6496.9408955292. The cubic root of 42210241 is about 348.1817020238.

Adding to 42210241 its reverse (14201224), we get a palindrome (56411465).

The spelling of 42210241 in words is "forty-two million, two hundred ten thousand, two hundred forty-one".