40190 has 8 divisors (see below), whose sum is σ = 72360. Its totient is φ = 16072.

The previous prime is 40189. The next prime is 40193. The reversal of 40190 is 9104.

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

It is a super-2 number, since 2×40190² = 3230472200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2000 + ... + 2019.

It is an arithmetic number, because the mean of its divisors is an integer number (9045).

2⁴⁰¹⁹⁰ is an apocalyptic number.

40190 is a deficient number, since it is larger than the sum of its proper divisors (32170).

40190 is a wasteful number, since it uses less digits than its factorization.

40190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4026.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 40190 is about 200.4744372732. The cubic root of 40190 is about 34.2535826611.

Adding to 40190 its sum of digits (14), we get a palindrome (40204).

Adding to 40190 its reverse (9104), we get a palindrome (49294).

The spelling of 40190 in words is "forty thousand, one hundred ninety".