4478320 has 80 divisors (see below), whose sum is σ = 12999168. Its totient is φ = 1393920.

The previous prime is 4478317. The next prime is 4478323. The reversal of 4478320 is 238744.

It is an interprime number because it is at equal distance from previous prime (4478317) and next prime (4478323).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4478323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5797 + ... + 6523.

Almost surely, 2^4478320 is an apocalyptic number.

4478320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4478320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6499584).

4478320 is an abundant number, since it is smaller than the sum of its proper divisors (8520848).

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

4478320 is a wasteful number, since it uses less digits than its factorization.

4478320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 4478320 is about 2116.2041489422. The cubic root of 4478320 is about 164.8308029895.

The spelling of 4478320 in words is "four million, four hundred seventy-eight thousand, three hundred twenty".