4478345 has 4 divisors (see below), whose sum is σ = 5374020. Its totient is φ = 3582672.

The previous prime is 4478339. The next prime is 4478351. The reversal of 4478345 is 5438744.

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

It is an interprime number because it is at equal distance from previous prime (4478339) and next prime (4478351).

It can be written as a sum of positive squares in 2 ways, for example, as 2085136 + 2393209 = 1444^2 + 1547^2 .

It is a cyclic number.

It is not a de Polignac number, because 4478345 - 2²² = 284041 is a prime.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447830 + ... + 447839.

It is an arithmetic number, because the mean of its divisors is an integer number (1343505).

Almost surely, 2^4478345 is an apocalyptic number.

It is an amenable number.

4478345 is a deficient number, since it is larger than the sum of its proper divisors (895675).

4478345 is an equidigital number, since it uses as much as digits as its factorization.

4478345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 895674.

The product of its digits is 53760, while the sum is 35.

The square root of 4478345 is about 2116.2100557364. The cubic root of 4478345 is about 164.8311097089.

The spelling of 4478345 in words is "four million, four hundred seventy-eight thousand, three hundred forty-five".