442400040024 has 32 divisors (see below), whose sum is σ = 1122507568320. Its totient is φ = 145265684256.

The previous prime is 442400040011. The next prime is 442400040041. The reversal of 442400040024 is 420040004244.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 442400039976 and 442400040003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137560594 + ... + 137563809.

It is an arithmetic number, because the mean of its divisors is an integer number (35078361510).

Almost surely, 2^442400040024 is an apocalyptic number.

It is an amenable number.

442400040024 is an abundant number, since it is smaller than the sum of its proper divisors (680107528296).

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

442400040024 is a wasteful number, since it uses less digits than its factorization.

442400040024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275124479 (or 275124475 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 442400040024 its reverse (420040004244), we get a palindrome (862440044268).

The spelling of 442400040024 in words is "four hundred forty-two billion, four hundred million, forty thousand, twenty-four".