440090 has 16 divisors (see below), whose sum is σ = 905472. Its totient is φ = 150864.

The previous prime is 440087. The next prime is 440093. The reversal of 440090 is 90044.

440090 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (440087) and next prime (440093).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3074 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (56592).

2⁴⁴⁰⁰⁹⁰ is an apocalyptic number.

440090 is an abundant number, since it is smaller than the sum of its proper divisors (465382).

It is a weird number, because it is abundant, but not a pseudoperfect number.

440090 is a wasteful number, since it uses less digits than its factorization.

440090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 440090 is about 663.3927946549. The cubic root of 440090 is about 76.0642347060.

The spelling of 440090 in words is "four hundred forty thousand, ninety".