4409999 has 8 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 3986200.

The previous prime is 4409981. The next prime is 4410019. The reversal of 4409999 is 9999044.

It is a happy number.

It is a Cunningham number, because it is equal to 2100²-1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4409999 is a prime.

It is a Duffinian number.

4409999 is a modest number, since divided by 9999 gives 440 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4409939) 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, 1052 + ... + 3150.

It is an arithmetic number, because the mean of its divisors is an integer number (604800).

Almost surely, 2^4409999 is an apocalyptic number.

4409999 is a deficient number, since it is larger than the sum of its proper divisors (428401).

4409999 is a wasteful number, since it uses less digits than its factorization.

4409999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 4409999 is about 2099.9997619047. Note that the first 3 decimals coincide. The cubic root of 4409999 is about 163.9882873848.

The spelling of 4409999 in words is "four million, four hundred nine thousand, nine hundred ninety-nine".