442421242420 has 48 divisors (see below), whose sum is σ = 932885553600. Its totient is φ = 176245180160.

The previous prime is 442421242409. The next prime is 442421242481. The reversal of 442421242420 is 24242124244.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11102091 + ... + 11141869.

It is an arithmetic number, because the mean of its divisors is an integer number (19435115700).

Almost surely, 2^442421242420 is an apocalyptic number.

It is an amenable number.

442421242420 is an abundant number, since it is smaller than the sum of its proper divisors (490464311180).

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

442421242420 is a wasteful number, since it uses less digits than its factorization.

442421242420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42048 (or 42046 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 31.

Adding to 442421242420 its reverse (24242124244), we get a palindrome (466663366664).

The spelling of 442421242420 in words is "four hundred forty-two billion, four hundred twenty-one million, two hundred forty-two thousand, four hundred twenty".