442530412240 has 80 divisors (see below), whose sum is σ = 1245035169792. Its totient is φ = 142799726592.

The previous prime is 442530412217. The next prime is 442530412241. The reversal of 442530412240 is 42214035244.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442530412241) by changing a digit.

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, 23232624 + ... + 23251663.

Almost surely, 2^442530412240 is an apocalyptic number.

442530412240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442530412240 is an abundant number, since it is smaller than the sum of its proper divisors (802504757552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442530412240 is a wasteful number, since it uses less digits than its factorization.

442530412240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46484324 (or 46484318 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 31.

Adding to 442530412240 its reverse (42214035244), we get a palindrome (484744447484).

The spelling of 442530412240 in words is "four hundred forty-two billion, five hundred thirty million, four hundred twelve thousand, two hundred forty".