442240402420 has 96 divisors (see below), whose sum is σ = 944997580800. Its totient is φ = 173824548480.

The previous prime is 442240402397. The next prime is 442240402441. The reversal of 442240402420 is 24204042244.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176682889 + ... + 176685391.

It is an arithmetic number, because the mean of its divisors is an integer number (9843724800).

Almost surely, 2^442240402420 is an apocalyptic number.

It is an amenable number.

442240402420 is an abundant number, since it is smaller than the sum of its proper divisors (502757178380).

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

442240402420 is a wasteful number, since it uses less digits than its factorization.

442240402420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3245 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 442240402420 its reverse (24204042244), we get a palindrome (466444444664).

The spelling of 442240402420 in words is "four hundred forty-two billion, two hundred forty million, four hundred two thousand, four hundred twenty".