40118705 has 16 divisors (see below), whose sum is σ = 53803008. Its totient is φ = 28464000.

The previous prime is 40118677. The next prime is 40118707. The reversal of 40118705 is 50781104.

It is not a de Polignac number, because 40118705 - 2⁶ = 40118641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40118707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6641 + ... + 11150.

It is an arithmetic number, because the mean of its divisors is an integer number (3362688).

Almost surely, 2^40118705 is an apocalyptic number.

It is an amenable number.

40118705 is a deficient number, since it is larger than the sum of its proper divisors (13684303).

40118705 is a wasteful number, since it uses less digits than its factorization.

40118705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17848.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 40118705 is about 6333.9328225045. The cubic root of 40118705 is about 342.3331597236. Note that the first 3 decimals are identical.

Adding to 40118705 its reverse (50781104), we get a palindrome (90899809).

The spelling of 40118705 in words is "forty million, one hundred eighteen thousand, seven hundred five".