440380 has 24 divisors (see below), whose sum is σ = 938448. Its totient is φ = 173568.

The previous prime is 440371. The next prime is 440383. The reversal of 440380 is 83044.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440383) by changing a digit.

440380 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, 1827 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (39102).

2⁴⁴⁰³⁸⁰ is an apocalyptic number.

It is an amenable number.

440380 is an abundant number, since it is smaller than the sum of its proper divisors (498068).

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

440380 is a wasteful number, since it uses less digits than its factorization.

440380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440380 is about 663.6113320310. The cubic root of 440380 is about 76.0809387018.

It can be divided in two parts, 440 and 380, that added together give a triangular number (820 = T₄₀).

The spelling of 440380 in words is "four hundred forty thousand, three hundred eighty".