4403281920 has 480 divisors, whose sum is σ = 15853985280. Its totient is φ = 1038090240.

The previous prime is 4403281919. The next prime is 4403281931. The reversal of 4403281920 is 291823044.

It is a tau number, because it is divible by the number of its divisors (480).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107397100 + ... + 107397140.

It is an arithmetic number, because the mean of its divisors is an integer number (33029136).

Almost surely, 2^4403281920 is an apocalyptic number.

4403281920 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 4403281920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7926992640).

4403281920 is an abundant number, since it is smaller than the sum of its proper divisors (11450703360).

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

4403281920 is a wasteful number, since it uses less digits than its factorization.

4403281920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 93 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 4403281920 is about 66357.2295985901. The cubic root of 4403281920 is about 1639.0498561388.

The spelling of 4403281920 in words is "four billion, four hundred three million, two hundred eighty-one thousand, nine hundred twenty".