442321241 has 2 divisors, whose sum is σ = 442321242. Its totient is φ = 442321240.

The previous prime is 442321223. The next prime is 442321279. The reversal of 442321241 is 142123244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442218841 + 102400 = 21029^2 + 320^2 .

It is a cyclic number.

It is not a de Polignac number, because 442321241 - 2²⁶ = 375212377 is a prime.

It is not a weakly prime, because it can be changed into another prime (442321141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221160620 + 221160621.

It is an arithmetic number, because the mean of its divisors is an integer number (221160621).

Almost surely, 2^442321241 is an apocalyptic number.

It is an amenable number.

442321241 is a deficient number, since it is larger than the sum of its proper divisors (1).

442321241 is an equidigital number, since it uses as much as digits as its factorization.

442321241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 23.

The square root of 442321241 is about 21031.4345920577. The cubic root of 442321241 is about 761.9256574689.

Adding to 442321241 its reverse (142123244), we get a palindrome (584444485).

The spelling of 442321241 in words is "four hundred forty-two million, three hundred twenty-one thousand, two hundred forty-one".