40618 has 8 divisors (see below), whose sum is σ = 63648. Its totient is φ = 19404.

The previous prime is 40609. The next prime is 40627. The reversal of 40618 is 81604.

It is an interprime number because it is at equal distance from previous prime (40609) and next prime (40627).

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

It is a zygodrome in base 5.

It is a junction number, because it is equal to n+sod(n) for n = 40595 and 40604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396 + ... + 487.

It is an arithmetic number, because the mean of its divisors is an integer number (7956).

2⁴⁰⁶¹⁸ is an apocalyptic number.

40618 is a deficient number, since it is larger than the sum of its proper divisors (23030).

40618 is a wasteful number, since it uses less digits than its factorization.

40618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 40618 is about 201.5390780965. The cubic root of 40618 is about 34.3747471056.

It can be divided in two parts, 406 and 18, that added together give a palindrome (424).

The spelling of 40618 in words is "forty thousand, six hundred eighteen".