404135120433212 has 24 divisors (see below), whose sum is σ = 808283969482080. Its totient is φ = 173197824053760.

The previous prime is 404135120433127. The next prime is 404135120433217. The reversal of 404135120433212 is 212334021531404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404135120433217) 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, 120898589 + ... + 124196372.

It is an arithmetic number, because the mean of its divisors is an integer number (33678498728420).

Almost surely, 2^{404135120433212} is an apocalyptic number.

It is an amenable number.

404135120433212 is an abundant number, since it is smaller than the sum of its proper divisors (404148849048868).

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

404135120433212 is a wasteful number, since it uses less digits than its factorization.

404135120433212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245153861 (or 245153859 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 404135120433212 its reverse (212334021531404), we get a palindrome (616469141964616).

The spelling of 404135120433212 in words is "four hundred four trillion, one hundred thirty-five billion, one hundred twenty million, four hundred thirty-three thousand, two hundred twelve".