4478805 has 12 divisors (see below), whose sum is σ = 7763340. Its totient is φ = 2388672.

The previous prime is 4478801. The next prime is 4478807. The reversal of 4478805 is 5088744.

It can be written as a sum of positive squares in 2 ways, for example, as 815409 + 3663396 = 903^2 + 1914^2 .

It is not a de Polignac number, because 4478805 - 2² = 4478801 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4478805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478801) 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 11 ways as a sum of consecutive naturals, for example, 49720 + ... + 49809.

It is an arithmetic number, because the mean of its divisors is an integer number (646945).

Almost surely, 2^4478805 is an apocalyptic number.

4478805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4478805 is a deficient number, since it is larger than the sum of its proper divisors (3284535).

4478805 is a wasteful number, since it uses less digits than its factorization.

4478805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99540 (or 99537 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 4478805 is about 2116.3187378087. The cubic root of 4478805 is about 164.8367531415.

The spelling of 4478805 in words is "four million, four hundred seventy-eight thousand, eight hundred five".