442441155 has 24 divisors (see below), whose sum is σ = 766553328. Its totient is φ = 217815936.

The previous prime is 442441141. The next prime is 442441157. The reversal of 442441155 is 551144244.

It is not a de Polignac number, because 442441155 - 2⁶ = 442441091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442441157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84732 + ... + 89801.

It is an arithmetic number, because the mean of its divisors is an integer number (31939722).

Almost surely, 2^442441155 is an apocalyptic number.

442441155 is a deficient number, since it is larger than the sum of its proper divisors (324112173).

442441155 is a wasteful number, since it uses less digits than its factorization.

442441155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174567 (or 174554 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 442441155 is about 21034.2852267435. The cubic root of 442441155 is about 761.9945043383.

Adding to 442441155 its reverse (551144244), we get a palindrome (993585399).

The spelling of 442441155 in words is "four hundred forty-two million, four hundred forty-one thousand, one hundred fifty-five".