405043351212 has 24 divisors (see below), whose sum is σ = 957064460800. Its totient is φ = 133305406416.

The previous prime is 405043351169. The next prime is 405043351213. The reversal of 405043351212 is 212153340504.

It is a super-2 number, since 2×405043351212² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 405043351212.

It is not an unprimeable number, because it can be changed into a prime (405043351213) 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, 213629512 + ... + 213631407.

Almost surely, 2^405043351212 is an apocalyptic number.

It is an amenable number.

405043351212 is an abundant number, since it is smaller than the sum of its proper divisors (552021109588).

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

405043351212 is a wasteful number, since it uses less digits than its factorization.

405043351212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427261005 (or 427261003 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 405043351212 its reverse (212153340504), we get a palindrome (617196691716).

The spelling of 405043351212 in words is "four hundred five billion, forty-three million, three hundred fifty-one thousand, two hundred twelve".