442842624228 has 12 divisors (see below), whose sum is σ = 1033299456560. Its totient is φ = 147614208072.

The previous prime is 442842624143. The next prime is 442842624271. The reversal of 442842624228 is 822426248244.

442842624228 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×442842624228² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18451775998 + ... + 18451776021.

Almost surely, 2^442842624228 is an apocalyptic number.

It is an amenable number.

442842624228 is an abundant number, since it is smaller than the sum of its proper divisors (590456832332).

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

442842624228 is a wasteful number, since it uses less digits than its factorization.

442842624228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36903552026 (or 36903552024 counting only the distinct ones).

The product of its digits is 3145728, while the sum is 48.

The spelling of 442842624228 in words is "four hundred forty-two billion, eight hundred forty-two million, six hundred twenty-four thousand, two hundred twenty-eight".