442420112440 has 16 divisors (see below), whose sum is σ = 995445253080. Its totient is φ = 176968044960.

The previous prime is 442420112429. The next prime is 442420112441. The reversal of 442420112440 is 44211024244.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 442420112399 and 442420112408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442420112441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5530251366 + ... + 5530251445.

Almost surely, 2^442420112440 is an apocalyptic number.

442420112440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

442420112440 is an abundant number, since it is smaller than the sum of its proper divisors (553025140640).

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

442420112440 is a wasteful number, since it uses less digits than its factorization.

442420112440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11060502822 (or 11060502818 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 442420112440 its reverse (44211024244), we get a palindrome (486631136684).

The spelling of 442420112440 in words is "four hundred forty-two billion, four hundred twenty million, one hundred twelve thousand, four hundred forty".