440158 has 8 divisors (see below), whose sum is σ = 667080. Its totient is φ = 217800.

The previous prime is 440131. The next prime is 440159. The reversal of 440158 is 851044.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440159) by changing a digit.

440158 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 888 + ... + 1291.

It is an arithmetic number, because the mean of its divisors is an integer number (83385).

2⁴⁴⁰¹⁵⁸ is an apocalyptic number.

440158 is a deficient number, since it is larger than the sum of its proper divisors (226922).

440158 is a wasteful number, since it uses less digits than its factorization.

440158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2282.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 440158 is about 663.4440443624. Note that the first 3 decimals coincide. The cubic root of 440158 is about 76.0681521634.

The spelling of 440158 in words is "four hundred forty thousand, one hundred fifty-eight".