4478455 has 4 divisors (see below), whose sum is σ = 5374152. Its totient is φ = 3582760.

The previous prime is 4478423. The next prime is 4478527. The reversal of 4478455 is 5548744.

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

It is not a de Polignac number, because 4478455 - 2⁵ = 4478423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 447841 + ... + 447850.

It is an arithmetic number, because the mean of its divisors is an integer number (1343538).

Almost surely, 2^4478455 is an apocalyptic number.

4478455 is a deficient number, since it is larger than the sum of its proper divisors (895697).

4478455 is an equidigital number, since it uses as much as digits as its factorization.

4478455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895696.

The product of its digits is 89600, while the sum is 37.

The square root of 4478455 is about 2116.2360454354. The cubic root of 4478455 is about 164.8324592605.

The spelling of 4478455 in words is "four million, four hundred seventy-eight thousand, four hundred fifty-five".