440055 has 48 divisors (see below), whose sum is σ = 958464. Its totient is φ = 181440.

The previous prime is 440047. The next prime is 440087. The reversal of 440055 is 550044.

440055 = T₉₈ + T₉₉ + ... + T₁₅₂.

It is a happy number.

It is not a de Polignac number, because 440055 - 2³ = 440047 is a prime.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3402 + ... + 3528.

It is an arithmetic number, because the mean of its divisors is an integer number (19968).

2⁴⁴⁰⁰⁵⁵ is an apocalyptic number.

440055 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

440055 is an abundant number, since it is smaller than the sum of its proper divisors (518409).

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

440055 is a wasteful number, since it uses less digits than its factorization.

440055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 440055 is about 663.3664145855. The cubic root of 440055 is about 76.0622182102.

Adding to 440055 its reverse (550044), we get a palindrome (990099).

The spelling of 440055 in words is "four hundred forty thousand, fifty-five".