420444422404 has 24 divisors (see below), whose sum is σ = 736610753088. Its totient is φ = 209984342880.

The previous prime is 420444422401. The next prime is 420444422473. The reversal of 420444422404 is 404224444024.

It is a self number, because there is not a number n which added to its sum of digits gives 420444422404.

It is not an unprimeable number, because it can be changed into a prime (420444422401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13966689 + ... + 13996759.

It is an arithmetic number, because the mean of its divisors is an integer number (30692114712).

Almost surely, 2^420444422404 is an apocalyptic number.

It is an amenable number.

420444422404 is a deficient number, since it is larger than the sum of its proper divisors (316166330684).

420444422404 is a wasteful number, since it uses less digits than its factorization.

420444422404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33915 (or 33913 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 420444422404 its reverse (404224444024), we get a palindrome (824668866428).

The spelling of 420444422404 in words is "four hundred twenty billion, four hundred forty-four million, four hundred twenty-two thousand, four hundred four".