440559 has 36 divisors (see below), whose sum is σ = 788424. Its totient is φ = 244944.

The previous prime is 440551. The next prime is 440567. The reversal of 440559 is 955044.

It is an interprime number because it is at equal distance from previous prime (440551) and next prime (440567).

It is not a de Polignac number, because 440559 - 2³ = 440551 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 440559.

It is not an unprimeable number, because it can be changed into a prime (440551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11889 + ... + 11925.

2⁴⁴⁰⁵⁵⁹ is an apocalyptic number.

440559 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

440559 is a deficient number, since it is larger than the sum of its proper divisors (347865).

440559 is an equidigital number, since it uses as much as digits as its factorization.

440559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 440559 is about 663.7461864297. The cubic root of 440559 is about 76.0912454394.

It can be divided in two parts, 44055 and 9, that multiplied together give a triangular number (396495 = T₈₉₀).

The spelling of 440559 in words is "four hundred forty thousand, five hundred fifty-nine".