440258 has 32 divisors (see below), whose sum is σ = 846720. Its totient is φ = 167040.

The previous prime is 440239. The next prime is 440261. The reversal of 440258 is 852044.

440258 is nontrivially palindromic in base 15.

It is an Ulam number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 440258.

It is an unprimeable number.

440258 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7433 + ... + 7491.

It is an arithmetic number, because the mean of its divisors is an integer number (26460).

2⁴⁴⁰²⁵⁸ is an apocalyptic number.

440258 is a deficient number, since it is larger than the sum of its proper divisors (406462).

440258 is a wasteful number, since it uses less digits than its factorization.

440258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 440258 is about 663.5194043884. The cubic root of 440258 is about 76.0739123974.

The spelling of 440258 in words is "four hundred forty thousand, two hundred fifty-eight".