2221444480 has 64 divisors (see below), whose sum is σ = 5454229680. Its totient is φ = 864552960.

The previous prime is 2221444403. The next prime is 2221444481. The reversal of 2221444480 is 844441222.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221444481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23226 + ... + 70585.

Almost surely, 2^2221444480 is an apocalyptic number.

2221444480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221444480 is an abundant number, since it is smaller than the sum of its proper divisors (3232785200).

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

2221444480 is an equidigital number, since it uses as much as digits as its factorization.

2221444480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93867 (or 93855 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 31.

The square root of 2221444480 is about 47132.2021552144. The cubic root of 2221444480 is about 1304.8036247329.

The spelling of 2221444480 in words is "two billion, two hundred twenty-one million, four hundred forty-four thousand, four hundred eighty".