440099 has 4 divisors (see below), whose sum is σ = 480120. Its totient is φ = 400080.

The previous prime is 440093. The next prime is 440101. The reversal of 440099 is 990044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440099 - 2¹² = 436003 is a prime.

It is a Duffinian number.

440099 is a modest number, since divided by 99 gives 44 as remainder.

It is a zygodrome in base 10.

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 3 ways as a sum of consecutive naturals, for example, 19994 + ... + 20015.

It is an arithmetic number, because the mean of its divisors is an integer number (120030).

2⁴⁴⁰⁰⁹⁹ is an apocalyptic number.

440099 is a deficient number, since it is larger than the sum of its proper divisors (40021).

440099 is a wasteful number, since it uses less digits than its factorization.

440099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40020.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 440099 is about 663.3995779317. The cubic root of 440099 is about 76.0647532161.

Subtracting 440099 from its reverse (990044), we obtain a palindrome (549945).

It can be divided in two parts, 4400 and 99, that multiplied together give a square (435600 = 660²).

The spelling of 440099 in words is "four hundred forty thousand, ninety-nine".