405412453242 has 16 divisors (see below), whose sum is σ = 900916562880. Its totient is φ = 135137484396.

The previous prime is 405412453217. The next prime is 405412453249. The reversal of 405412453242 is 242354214504.

405412453242 is a `hidden beast` number, since 4 + 0 + 541 + 2 + 45 + 32 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 405412453197 and 405412453206.

It is not an unprimeable number, because it can be changed into a prime (405412453249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3753818958 + ... + 3753819065.

It is an arithmetic number, because the mean of its divisors is an integer number (56307285180).

Almost surely, 2^405412453242 is an apocalyptic number.

405412453242 is an abundant number, since it is smaller than the sum of its proper divisors (495504109638).

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

405412453242 is a wasteful number, since it uses less digits than its factorization.

405412453242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7507638034 (or 7507638028 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 405412453242 its reverse (242354214504), we get a palindrome (647766667746).

The spelling of 405412453242 in words is "four hundred five billion, four hundred twelve million, four hundred fifty-three thousand, two hundred forty-two".