440920 has 32 divisors (see below), whose sum is σ = 1012320. Its totient is φ = 172800.

The previous prime is 440911. The next prime is 440939. The reversal of 440920 is 29044.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

440920 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2845 + ... + 2995.

It is an arithmetic number, because the mean of its divisors is an integer number (31635).

2⁴⁴⁰⁹²⁰ is an apocalyptic number.

440920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506160).

440920 is an abundant number, since it is smaller than the sum of its proper divisors (571400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440920 is a wasteful number, since it uses less digits than its factorization.

440920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 440920 is about 664.0180720432. The cubic root of 440920 is about 76.1120231636.

Adding to 440920 its reverse (29044), we get a palindrome (469964).

The spelling of 440920 in words is "four hundred forty thousand, nine hundred twenty".