442312134660 has 72 divisors (see below), whose sum is σ = 1463651070336. Its totient is φ = 107227183680.

The previous prime is 442312134623. The next prime is 442312134689. The reversal of 442312134660 is 66431213244.

442312134660 is a `hidden beast` number, since 4 + 4 + 231 + 21 + 346 + 60 = 666.

442312134660 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 111693004 + ... + 111696963.

It is an arithmetic number, because the mean of its divisors is an integer number (20328487088).

Almost surely, 2^442312134660 is an apocalyptic number.

It is an amenable number.

442312134660 is an abundant number, since it is smaller than the sum of its proper divisors (1021338935676).

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

442312134660 is a wasteful number, since it uses less digits than its factorization.

442312134660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223389993 (or 223389988 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 442312134660 in words is "four hundred forty-two billion, three hundred twelve million, one hundred thirty-four thousand, six hundred sixty".