442147388312 has 24 divisors (see below), whose sum is σ = 964377595260. Its totient is φ = 189491737680.

The previous prime is 442147388311. The next prime is 442147388321. The reversal of 442147388312 is 213883741244.

It is a super-2 number, since 2×442147388312² (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 (442147388311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 563963114 + ... + 563963897.

Almost surely, 2^442147388312 is an apocalyptic number.

It is an amenable number.

442147388312 is an abundant number, since it is smaller than the sum of its proper divisors (522230206948).

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

442147388312 is a wasteful number, since it uses less digits than its factorization.

442147388312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127927031 (or 1127927020 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The spelling of 442147388312 in words is "four hundred forty-two billion, one hundred forty-seven million, three hundred eighty-eight thousand, three hundred twelve".