4478538 has 16 divisors (see below), whose sum is σ = 9084096. Its totient is φ = 1471680.

The previous prime is 4478533. The next prime is 4478549. The reversal of 4478538 is 8358744.

It is a junction number, because it is equal to n+sod(n) for n = 4478496 and 4478505.

It is not an unprimeable number, because it can be changed into a prime (4478533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4831 + ... + 5682.

It is an arithmetic number, because the mean of its divisors is an integer number (567756).

Almost surely, 2^4478538 is an apocalyptic number.

4478538 is an abundant number, since it is smaller than the sum of its proper divisors (4605558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4478538 is a wasteful number, since it uses less digits than its factorization.

4478538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10589.

The product of its digits is 107520, while the sum is 39.

The square root of 4478538 is about 2116.2556556333. The cubic root of 4478538 is about 164.8334775439.

The spelling of 4478538 in words is "four million, four hundred seventy-eight thousand, five hundred thirty-eight".