440490 has 16 divisors (see below), whose sum is σ = 1057248. Its totient is φ = 117456.

The previous prime is 440471. The next prime is 440497. The reversal of 440490 is 94044.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440497) by changing a digit.

440490 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, 7312 + ... + 7371.

It is an arithmetic number, because the mean of its divisors is an integer number (66078).

2⁴⁴⁰⁴⁹⁰ is an apocalyptic number.

440490 is an abundant number, since it is smaller than the sum of its proper divisors (616758).

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

440490 is a wasteful number, since it uses less digits than its factorization.

440490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14693.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 440490 is about 663.6942066946. The cubic root of 440490 is about 76.0872727819.

The spelling of 440490 in words is "four hundred forty thousand, four hundred ninety".