442251340421140 has 48 divisors (see below), whose sum is σ = 928987877873664. Its totient is φ = 176851004025600.

The previous prime is 442251340421081. The next prime is 442251340421159. The reversal of 442251340421140 is 41124043152244.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 442251340421140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2229091345 + ... + 2229289735.

It is an arithmetic number, because the mean of its divisors is an integer number (19353914122368).

Almost surely, 2^{442251340421140} is an apocalyptic number.

It is an amenable number.

442251340421140 is an abundant number, since it is smaller than the sum of its proper divisors (486736537452524).

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

442251340421140 is a wasteful number, since it uses less digits than its factorization.

442251340421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229048 (or 229046 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 442251340421140 its reverse (41124043152244), we get a palindrome (483375383573384).

The spelling of 442251340421140 in words is "four hundred forty-two trillion, two hundred fifty-one billion, three hundred forty million, four hundred twenty-one thousand, one hundred forty".