404310020 has 48 divisors (see below), whose sum is σ = 878387328. Its totient is φ = 156215040.

The previous prime is 404310019. The next prime is 404310059. The reversal of 404310020 is 20013404.

It is a junction number, because it is equal to n+sod(n) for n = 404309977 and 404310004.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82067 + ... + 86853.

It is an arithmetic number, because the mean of its divisors is an integer number (18299736).

Almost surely, 2^404310020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404310020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (439193664).

404310020 is an abundant number, since it is smaller than the sum of its proper divisors (474077308).

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

404310020 is a wasteful number, since it uses less digits than its factorization.

404310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940 (or 4938 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 404310020 is about 20107.4617990437. The cubic root of 404310020 is about 739.4432261864.

Adding to 404310020 its reverse (20013404), we get a palindrome (424323424).

The spelling of 404310020 in words is "four hundred four million, three hundred ten thousand, twenty".