442142505120 has 192 divisors, whose sum is σ = 1474283099520. Its totient is φ = 111191420928.

The previous prime is 442142505107. The next prime is 442142505131. The reversal of 442142505120 is 21505241244.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229222 + ... + 967898.

It is an arithmetic number, because the mean of its divisors is an integer number (7678557810).

Almost surely, 2^442142505120 is an apocalyptic number.

442142505120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 442142505120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (737141549760).

442142505120 is an abundant number, since it is smaller than the sum of its proper divisors (1032140594400).

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

442142505120 is a wasteful number, since it uses less digits than its factorization.

442142505120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738767 (or 738759 counting only the distinct ones).

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

Adding to 442142505120 its reverse (21505241244), we get a palindrome (463647746364).

The spelling of 442142505120 in words is "four hundred forty-two billion, one hundred forty-two million, five hundred five thousand, one hundred twenty".