405403512242 has 16 divisors (see below), whose sum is σ = 644176737792. Its totient is φ = 190689065280.

The previous prime is 405403512223. The next prime is 405403512247. The reversal of 405403512242 is 242215304504.

It is a junction number, because it is equal to n+sod(n) for n = 405403512199 and 405403512208.

It is not an unprimeable number, because it can be changed into a prime (405403512247) 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, 2709134 + ... + 2854857.

It is an arithmetic number, because the mean of its divisors is an integer number (40261046112).

Almost surely, 2^405403512242 is an apocalyptic number.

405403512242 is a deficient number, since it is larger than the sum of its proper divisors (238773225550).

405403512242 is a wasteful number, since it uses less digits than its factorization.

405403512242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5566153.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 405403512242 its reverse (242215304504), we get a palindrome (647618816746).

The spelling of 405403512242 in words is "four hundred five billion, four hundred three million, five hundred twelve thousand, two hundred forty-two".