40118 has 8 divisors (see below), whose sum is σ = 64848. Its totient is φ = 18504.

The previous prime is 40111. The next prime is 40123. The reversal of 40118 is 81104.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40111) by changing a digit.

40118 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746 + ... + 797.

It is an arithmetic number, because the mean of its divisors is an integer number (8106).

2⁴⁰¹¹⁸ is an apocalyptic number.

40118 is a deficient number, since it is larger than the sum of its proper divisors (24730).

40118 is a wasteful number, since it uses less digits than its factorization.

40118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 40118 is about 200.2947827578. The cubic root of 40118 is about 34.2331154455.

Subtracting from 40118 its sum of digits (14), we obtain a palindrome (40104).

The spelling of 40118 in words is "forty thousand, one hundred eighteen".