40185118 has 8 divisors (see below), whose sum is σ = 60311880. Its totient is φ = 20081160.

The previous prime is 40185107. The next prime is 40185143. The reversal of 40185118 is 81158104.

40185118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×40185118² = 3229687417347848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 253 + ... + 8968.

It is an arithmetic number, because the mean of its divisors is an integer number (7538985).

Almost surely, 2^40185118 is an apocalyptic number.

40185118 is a deficient number, since it is larger than the sum of its proper divisors (20126762).

40185118 is a wasteful number, since it uses less digits than its factorization.

40185118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11402.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 40185118 is about 6339.1732899488. The cubic root of 40185118 is about 342.5219564307.

The spelling of 40185118 in words is "forty million, one hundred eighty-five thousand, one hundred eighteen".