442289931084 has 36 divisors (see below), whose sum is σ = 1118655947136. Its totient is φ = 147344884128.

The previous prime is 442289931053. The next prime is 442289931089. The reversal of 442289931084 is 480139982244.

It is a happy number.

442289931084 is a `hidden beast` number, since 4 + 42 + 289 + 9 + 310 + 8 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 442289931084.

It is not an unprimeable number, because it can be changed into a prime (442289931089) 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 11 ways as a sum of consecutive naturals, for example, 3482284 + ... + 3607059.

Almost surely, 2^442289931084 is an apocalyptic number.

It is an amenable number.

442289931084 is an abundant number, since it is smaller than the sum of its proper divisors (676366016052).

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

442289931084 is a wasteful number, since it uses less digits than its factorization.

442289931084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7091086 (or 7091081 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 442289931084 in words is "four hundred forty-two billion, two hundred eighty-nine million, nine hundred thirty-one thousand, eighty-four".