4421280 has 96 divisors (see below), whose sum is σ = 14249088. Its totient is φ = 1152000.

The previous prime is 4421257. The next prime is 4421297. The reversal of 4421280 is 821244.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29205 + ... + 29355.

It is an arithmetic number, because the mean of its divisors is an integer number (148428).

Almost surely, 2^4421280 is an apocalyptic number.

4421280 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 4421280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7124544).

4421280 is an abundant number, since it is smaller than the sum of its proper divisors (9827808).

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

4421280 is a wasteful number, since it uses less digits than its factorization.

4421280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4421280 is about 2102.6839990831. The cubic root of 4421280 is about 164.1279984282.

The spelling of 4421280 in words is "four million, four hundred twenty-one thousand, two hundred eighty".