442541521530 has 48 divisors (see below), whose sum is σ = 1150872095880. Its totient is φ = 117983981184.

The previous prime is 442541521517. The next prime is 442541521571. The reversal of 442541521530 is 35125145244.

442541521530 is a `hidden beast` number, since 4 + 4 + 25 + 415 + 215 + 3 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 392485961169 + 50055560361 = 626487^2 + 223731^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168645 + ... + 955784.

Almost surely, 2^442541521530 is an apocalyptic number.

442541521530 is an abundant number, since it is smaller than the sum of its proper divisors (708330574350).

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

442541521530 is a wasteful number, since it uses less digits than its factorization.

442541521530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128815 (or 1128812 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 442541521530 its reverse (35125145244), we get a palindrome (477666666774).

The spelling of 442541521530 in words is "four hundred forty-two billion, five hundred forty-one million, five hundred twenty-one thousand, five hundred thirty".