37218 has 8 divisors (see below), whose sum is σ = 74448. Its totient is φ = 12404.

The previous prime is 37217. The next prime is 37223. The reversal of 37218 is 81273.

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

37218 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 37194 and 37203.

It is not an unprimeable number, because it can be changed into a prime (37217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3096 + ... + 3107.

It is an arithmetic number, because the mean of its divisors is an integer number (9306).

2³⁷²¹⁸ is an apocalyptic number.

37218 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 (37224).

37218 is a wasteful number, since it uses less digits than its factorization.

37218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6208.

The product of its digits is 336, while the sum is 21.

The square root of 37218 is about 192.9196724028. The cubic root of 37218 is about 33.3875340429.

The spelling of 37218 in words is "thirty-seven thousand, two hundred eighteen".