404000115 has 16 divisors (see below), whose sum is σ = 647420928. Its totient is φ = 215126496.

The previous prime is 404000111. The next prime is 404000123. The reversal of 404000115 is 511000404.

It is not a de Polignac number, because 404000115 - 2² = 404000111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 404000094 and 404000103.

It is not an unprimeable number, because it can be changed into a prime (404000111) 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 15 ways as a sum of consecutive naturals, for example, 11299 + ... + 30588.

It is an arithmetic number, because the mean of its divisors is an integer number (40463808).

Almost surely, 2^404000115 is an apocalyptic number.

404000115 is a deficient number, since it is larger than the sum of its proper divisors (243420813).

404000115 is a wasteful number, since it uses less digits than its factorization.

404000115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42538.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 404000115 is about 20099.7541029735. The cubic root of 404000115 is about 739.2542493151.

Adding to 404000115 its reverse (511000404), we get a palindrome (915000519).

The spelling of 404000115 in words is "four hundred four million, one hundred fifteen", and thus it is an aban number.