405116115 has 32 divisors (see below), whose sum is σ = 667408896. Its totient is φ = 209717760.

The previous prime is 405116113. The next prime is 405116141. The reversal of 405116115 is 511611504.

It is not a de Polignac number, because 405116115 - 2¹ = 405116113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (405116113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 105835 + ... + 109595.

It is an arithmetic number, because the mean of its divisors is an integer number (20856528).

Almost surely, 2^405116115 is an apocalyptic number.

405116115 is a deficient number, since it is larger than the sum of its proper divisors (262292781).

405116115 is a wasteful number, since it uses less digits than its factorization.

405116115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3979.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 405116115 is about 20127.4964911188. The cubic root of 405116115 is about 739.9343227565.

Adding to 405116115 its reverse (511611504), we get a palindrome (916727619).

The spelling of 405116115 in words is "four hundred five million, one hundred sixteen thousand, one hundred fifteen".