442271715644 has 96 divisors (see below), whose sum is σ = 912875636736. Its totient is φ = 185437486080.

The previous prime is 442271715643. The next prime is 442271715653. The reversal of 442271715644 is 446517172244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442271715643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4178909 + ... + 4283435.

It is an arithmetic number, because the mean of its divisors is an integer number (9509121216).

Almost surely, 2^442271715644 is an apocalyptic number.

442271715644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

442271715644 is an abundant number, since it is smaller than the sum of its proper divisors (470603921092).

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

442271715644 is a wasteful number, since it uses less digits than its factorization.

442271715644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104715 (or 104713 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 47.

Adding to 442271715644 its reverse (446517172244), we get a palindrome (888788887888).

The spelling of 442271715644 in words is "four hundred forty-two billion, two hundred seventy-one million, seven hundred fifteen thousand, six hundred forty-four".