442444420324 has 48 divisors (see below), whose sum is σ = 830513897136. Its totient is φ = 205509427200.

The previous prime is 442444420267. The next prime is 442444420333. The reversal of 442444420324 is 423024444244.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 70793244900 + 371651175424 = 266070^2 + 609632^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1732384 + ... + 1971304.

It is an arithmetic number, because the mean of its divisors is an integer number (17302372857).

Almost surely, 2^442444420324 is an apocalyptic number.

It is an amenable number.

442444420324 is a deficient number, since it is larger than the sum of its proper divisors (388069476812).

442444420324 is a wasteful number, since it uses less digits than its factorization.

442444420324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239296 (or 239294 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 37.

Adding to 442444420324 its reverse (423024444244), we get a palindrome (865468864568).

The spelling of 442444420324 in words is "four hundred forty-two billion, four hundred forty-four million, four hundred twenty thousand, three hundred twenty-four".