404011304020 has 24 divisors (see below), whose sum is σ = 851554464768. Its totient is φ = 161008192800.

The previous prime is 404011303999. The next prime is 404011304051. The reversal of 404011304020 is 20403110404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37264996 + ... + 37275835.

It is an arithmetic number, because the mean of its divisors is an integer number (35481436032).

Almost surely, 2^404011304020 is an apocalyptic number.

It is an amenable number.

404011304020 is an abundant number, since it is smaller than the sum of its proper divisors (447543160748).

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

404011304020 is a wasteful number, since it uses less digits than its factorization.

404011304020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74541111 (or 74541109 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 404011304020 its reverse (20403110404), we get a palindrome (424414414424).

The spelling of 404011304020 in words is "four hundred four billion, eleven million, three hundred four thousand, twenty".