404521120312 has 8 divisors (see below), whose sum is σ = 758477100600. Its totient is φ = 202260560152.

The previous prime is 404521120291. The next prime is 404521120319. The reversal of 404521120312 is 213021125404.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404521120319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25282570012 + ... + 25282570027.

It is an arithmetic number, because the mean of its divisors is an integer number (94809637575).

Almost surely, 2^404521120312 is an apocalyptic number.

It is an amenable number.

404521120312 is a deficient number, since it is larger than the sum of its proper divisors (353955980288).

404521120312 is a wasteful number, since it uses less digits than its factorization.

404521120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50565140045 (or 50565140041 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 404521120312 its reverse (213021125404), we get a palindrome (617542245716).

The spelling of 404521120312 in words is "four hundred four billion, five hundred twenty-one million, one hundred twenty thousand, three hundred twelve".