40918 has 8 divisors (see below), whose sum is σ = 63000. Its totient is φ = 19920.

The previous prime is 40903. The next prime is 40927. The reversal of 40918 is 81904.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 168 + ... + 331.

It is an arithmetic number, because the mean of its divisors is an integer number (7875).

2⁴⁰⁹¹⁸ is an apocalyptic number.

40918 is a deficient number, since it is larger than the sum of its proper divisors (22082).

40918 is a wasteful number, since it uses less digits than its factorization.

40918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 40918 is about 202.2819814022. The cubic root of 40918 is about 34.4591689464.

The spelling of 40918 in words is "forty thousand, nine hundred eighteen".