404010104420 has 96 divisors (see below), whose sum is σ = 969669374688. Its totient is φ = 140073172992.

The previous prime is 404010104411. The next prime is 404010104447. The reversal of 404010104420 is 24401010404.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 188736375844 + 215273728576 = 434438^2 + 463976^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 404010104392 and 404010104401.

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, 1808312 + ... + 2019408.

It is an arithmetic number, because the mean of its divisors is an integer number (10100722653).

Almost surely, 2^404010104420 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 404010104420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (484834687344).

404010104420 is an abundant number, since it is smaller than the sum of its proper divisors (565659270268).

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

404010104420 is a wasteful number, since it uses less digits than its factorization.

404010104420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211569 (or 211567 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 404010104420 its reverse (24401010404), we get a palindrome (428411114824).

The spelling of 404010104420 in words is "four hundred four billion, ten million, one hundred four thousand, four hundred twenty".