440828 has 12 divisors (see below), whose sum is σ = 776832. Its totient is φ = 218880.

The previous prime is 440821. The next prime is 440831. The reversal of 440828 is 828044.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 440797 and 440806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440821) by changing a digit.

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, 476 + ... + 1052.

It is an arithmetic number, because the mean of its divisors is an integer number (64736).

2⁴⁴⁰⁸²⁸ is an apocalyptic number.

It is an amenable number.

440828 is a deficient number, since it is larger than the sum of its proper divisors (336004).

440828 is a wasteful number, since it uses less digits than its factorization.

440828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 440828 is about 663.9487932062. The cubic root of 440828 is about 76.1067290867.

The spelling of 440828 in words is "four hundred forty thousand, eight hundred twenty-eight".