40559218 has 8 divisors (see below), whose sum is σ = 69530112. Its totient is φ = 17382516.

The previous prime is 40559213. The next prime is 40559249. The reversal of 40559218 is 81295504.

40559218 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 not an unprimeable number, because it can be changed into a prime (40559213) 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 3 ways as a sum of consecutive naturals, for example, 1448530 + ... + 1448557.

It is an arithmetic number, because the mean of its divisors is an integer number (8691264).

Almost surely, 2^40559218 is an apocalyptic number.

40559218 is a deficient number, since it is larger than the sum of its proper divisors (28970894).

40559218 is a wasteful number, since it uses less digits than its factorization.

40559218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2897096.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 40559218 is about 6368.6119366782. The cubic root of 40559218 is about 343.5815682616.

The spelling of 40559218 in words is "forty million, five hundred fifty-nine thousand, two hundred eighteen".