442020422 has 8 divisors (see below), whose sum is σ = 663193872. Its totient is φ = 220955800.

The previous prime is 442020419. The next prime is 442020433. The reversal of 442020422 is 224020244.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 442020394 and 442020403.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16154 + ... + 33837.

It is an arithmetic number, because the mean of its divisors is an integer number (82899234).

Almost surely, 2^442020422 is an apocalyptic number.

442020422 is a deficient number, since it is larger than the sum of its proper divisors (221173450).

442020422 is a wasteful number, since it uses less digits than its factorization.

442020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54414.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 442020422 is about 21024.2817237593. The cubic root of 442020422 is about 761.7528918617.

Adding to 442020422 its reverse (224020244), we get a palindrome (666040666).

It can be divided in two parts, 4420 and 20422, that added together give a palindrome (24842).

The spelling of 442020422 in words is "four hundred forty-two million, twenty thousand, four hundred twenty-two".