40182 has 16 divisors (see below), whose sum is σ = 82992. Its totient is φ = 12960.

The previous prime is 40177. The next prime is 40189. The reversal of 40182 is 28104.

It is a super-2 number, since 2×40182² = 3229186248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132 + ... + 312.

It is an arithmetic number, because the mean of its divisors is an integer number (5187).

2⁴⁰¹⁸² is an apocalyptic number.

40182 is an abundant number, since it is smaller than the sum of its proper divisors (42810).

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 (41496).

40182 is a wasteful number, since it uses less digits than its factorization.

40182 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 40182 is about 200.4544836116. The cubic root of 40182 is about 34.2513097338.

Adding to 40182 its reverse (28104), we get a palindrome (68286).

It can be divided in two parts, 40 and 182, that added together give a palindrome (222).

The spelling of 40182 in words is "forty thousand, one hundred eighty-two".