4478403 has 4 divisors (see below), whose sum is σ = 5971208. Its totient is φ = 2985600.

The previous prime is 4478387. The next prime is 4478413. The reversal of 4478403 is 3048744.

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

It is not a de Polignac number, because 4478403 - 2⁴ = 4478387 is a prime.

It is a D-number.

It is a Duffinian number.

4478403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4478413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 746398 + ... + 746403.

It is an arithmetic number, because the mean of its divisors is an integer number (1492802).

Almost surely, 2^4478403 is an apocalyptic number.

4478403 is a deficient number, since it is larger than the sum of its proper divisors (1492805).

4478403 is a wasteful number, since it uses less digits than its factorization.

4478403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492804.

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 4478403 is about 2116.2237594357. The cubic root of 4478403 is about 164.8318212934.

The spelling of 4478403 in words is "four million, four hundred seventy-eight thousand, four hundred three".