405305013142 has 8 divisors (see below), whose sum is σ = 608003746056. Its totient is φ = 202637097792.

The previous prime is 405305012977. The next prime is 405305013199. The reversal of 405305013142 is 241310503504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 405305013142.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 7671483 + ... + 7724134.

It is an arithmetic number, because the mean of its divisors is an integer number (76000468257).

Almost surely, 2^405305013142 is an apocalyptic number.

405305013142 is a deficient number, since it is larger than the sum of its proper divisors (202698732914).

405305013142 is a wasteful number, since it uses less digits than its factorization.

405305013142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15408782.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 405305013142 its reverse (241310503504), we get a palindrome (646615516646).

The spelling of 405305013142 in words is "four hundred five billion, three hundred five million, thirteen thousand, one hundred forty-two".