404224044020 has 24 divisors (see below), whose sum is σ = 848893998624. Its totient is φ = 161685140256.

The previous prime is 404224044013. The next prime is 404224044023. The reversal of 404224044020 is 20440422404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404224044023) 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, 515627 + ... + 1036493.

It is an arithmetic number, because the mean of its divisors is an integer number (35370583276).

Almost surely, 2^404224044020 is an apocalyptic number.

It is an amenable number.

404224044020 is an abundant number, since it is smaller than the sum of its proper divisors (444669954604).

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

404224044020 is a wasteful number, since it uses less digits than its factorization.

404224044020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559679 (or 559677 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 404224044020 its reverse (20440422404), we get a palindrome (424664466424).

The spelling of 404224044020 in words is "four hundred four billion, two hundred twenty-four million, forty-four thousand, twenty".