404511213522 has 64 divisors (see below), whose sum is σ = 922684573440. Its totient is φ = 117120743424.

The previous prime is 404511213521. The next prime is 404511213551. The reversal of 404511213522 is 225312115404.

It is a self number, because there is not a number n which added to its sum of digits gives 404511213522.

It is not an unprimeable number, because it can be changed into a prime (404511213521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7516803 + ... + 7570425.

It is an arithmetic number, because the mean of its divisors is an integer number (14416946460).

Almost surely, 2^404511213522 is an apocalyptic number.

404511213522 is an abundant number, since it is smaller than the sum of its proper divisors (518173359918).

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

404511213522 is a wasteful number, since it uses less digits than its factorization.

404511213522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59347.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 404511213522 its reverse (225312115404), we get a palindrome (629823328926).

The spelling of 404511213522 in words is "four hundred four billion, five hundred eleven million, two hundred thirteen thousand, five hundred twenty-two".