440080 has 20 divisors (see below), whose sum is σ = 1023372. Its totient is φ = 176000.

The previous prime is 440047. The next prime is 440087. The reversal of 440080 is 80044.

It can be written as a sum of positive squares in 2 ways, for example, as 327184 + 112896 = 572^2 + 336^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (440087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2671 + ... + 2830.

2⁴⁴⁰⁰⁸⁰ is an apocalyptic number.

440080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

440080 is an abundant number, since it is smaller than the sum of its proper divisors (583292).

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

440080 is a wasteful number, since it uses less digits than its factorization.

440080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514 (or 5508 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 440080 is about 663.3852575992. The cubic root of 440080 is about 76.0636585752.

The spelling of 440080 in words is "four hundred forty thousand, eighty".