2444012720 has 80 divisors (see below), whose sum is σ = 5903931648. Its totient is φ = 939893760.

The previous prime is 2444012719. The next prime is 2444012741. The reversal of 2444012720 is 272104442.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2444012720.

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, 386222 + ... + 392498.

Almost surely, 2^2444012720 is an apocalyptic number.

2444012720 is a gapful number since it is divisible by the number (20) 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 2444012720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2951965824).

2444012720 is an abundant number, since it is smaller than the sum of its proper divisors (3459918928).

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

2444012720 is a wasteful number, since it uses less digits than its factorization.

2444012720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6478 (or 6472 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 26.

The square root of 2444012720 is about 49436.9570260954. The cubic root of 2444012720 is about 1347.0006975638. Note that the first 3 decimals are identical.

The spelling of 2444012720 in words is "two billion, four hundred forty-four million, twelve thousand, seven hundred twenty".