442866480636 has 12 divisors (see below), whose sum is σ = 1033355121512. Its totient is φ = 147622160208.

The previous prime is 442866480631. The next prime is 442866480689. The reversal of 442866480636 is 636084668244.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×442866480636² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442866480631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18452770015 + ... + 18452770038.

Almost surely, 2^442866480636 is an apocalyptic number.

It is an amenable number.

442866480636 is an abundant number, since it is smaller than the sum of its proper divisors (590488640876).

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

442866480636 is a wasteful number, since it uses less digits than its factorization.

442866480636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36905540060 (or 36905540058 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 57.

The spelling of 442866480636 in words is "four hundred forty-two billion, eight hundred sixty-six million, four hundred eighty thousand, six hundred thirty-six".