442266642064 has 40 divisors (see below), whose sum is σ = 922902900920. Its totient is φ = 204101710848.

The previous prime is 442266642049. The next prime is 442266642071. The reversal of 442266642064 is 460246662244.

It can be written as a sum of positive squares in 4 ways, for example, as 165317054464 + 276949587600 = 406592^2 + 526260^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1975654 + ... + 2188090.

It is an arithmetic number, because the mean of its divisors is an integer number (23072572523).

Almost surely, 2^442266642064 is an apocalyptic number.

It is an amenable number.

442266642064 is an abundant number, since it is smaller than the sum of its proper divisors (480636258856).

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

442266642064 is a wasteful number, since it uses less digits than its factorization.

442266642064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222467 (or 222461 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 46.

The spelling of 442266642064 in words is "four hundred forty-two billion, two hundred sixty-six million, six hundred forty-two thousand, sixty-four".