442422224440 has 32 divisors (see below), whose sum is σ = 1137657149280. Its totient is φ = 151687619712.

The previous prime is 442422224423. The next prime is 442422224449. The reversal of 442422224440 is 44422224244.

It is a junction number, because it is equal to n+sod(n) for n = 442422224396 and 442422224405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442422224449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 790039407 + ... + 790039966.

It is an arithmetic number, because the mean of its divisors is an integer number (35551785915).

Almost surely, 2^442422224440 is an apocalyptic number.

442422224440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442422224440 is an abundant number, since it is smaller than the sum of its proper divisors (695234924840).

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

442422224440 is a wasteful number, since it uses less digits than its factorization.

442422224440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580079391 (or 1580079387 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 442422224440 its reverse (44422224244), we get a palindrome (486844448684).

The spelling of 442422224440 in words is "four hundred forty-two billion, four hundred twenty-two million, two hundred twenty-four thousand, four hundred forty".