45618 has 8 divisors (see below), whose sum is σ = 91248. Its totient is φ = 15204.

The previous prime is 45613. The next prime is 45631. The reversal of 45618 is 81654.

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

45618 is an admirable number.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a plaindrome in base 7.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (45613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3796 + ... + 3807.

It is an arithmetic number, because the mean of its divisors is an integer number (11406).

2⁴⁵⁶¹⁸ is an apocalyptic number.

45618 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45624).

45618 is a wasteful number, since it uses less digits than its factorization.

45618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608.

The product of its digits is 960, while the sum is 24.

The square root of 45618 is about 213.5837072438. The cubic root of 45618 is about 35.7310199673.

It can be divided in two parts, 456 and 18, that added together give a palindrome (474).

The spelling of 45618 in words is "forty-five thousand, six hundred eighteen".