404422321020 has 48 divisors (see below), whose sum is σ = 1142965531008. Its totient is φ = 106838044480.

The previous prime is 404422321019. The next prime is 404422321027. The reversal of 404422321020 is 20123224404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404422321027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31490646 + ... + 31503485.

It is an arithmetic number, because the mean of its divisors is an integer number (23811781896).

Almost surely, 2^404422321020 is an apocalyptic number.

It is an amenable number.

404422321020 is an abundant number, since it is smaller than the sum of its proper divisors (738543209988).

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

404422321020 is a wasteful number, since it uses less digits than its factorization.

404422321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62994250 (or 62994248 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 404422321020 its reverse (20123224404), we get a palindrome (424545545424).

The spelling of 404422321020 in words is "four hundred four billion, four hundred twenty-two million, three hundred twenty-one thousand, twenty".