4447880 has 64 divisors (see below), whose sum is σ = 10990080. Its totient is φ = 1612800.

The previous prime is 4447879. The next prime is 4447889. The reversal of 4447880 is 887444.

4447880 = T₁₁₉ + T₁₂₀ + ... + T₃₀₄.

It is a Cunningham number, because it is equal to 2109²-1.

It is a self number, because there is not a number n which added to its sum of digits gives 4447880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4447889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20975 + ... + 21185.

It is an arithmetic number, because the mean of its divisors is an integer number (171720).

Almost surely, 2^4447880 is an apocalyptic number.

4447880 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 4447880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5495040).

4447880 is an abundant number, since it is smaller than the sum of its proper divisors (6542200).

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

4447880 is a wasteful number, since it uses less digits than its factorization.

4447880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270 (or 266 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 4447880 is about 2108.9997629208. Note that the first 3 decimals coincide. The cubic root of 4447880 is about 164.4564914205.

The spelling of 4447880 in words is "four million, four hundred forty-seven thousand, eight hundred eighty".