2144487648 has 24 divisors (see below), whose sum is σ = 5629280328. Its totient is φ = 714829184.

The previous prime is 2144487647. The next prime is 2144487673. The reversal of 2144487648 is 8467844412.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 2144487597 and 2144487606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144487647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11169111 + ... + 11169302.

It is an arithmetic number, because the mean of its divisors is an integer number (234553347).

Almost surely, 2^2144487648 is an apocalyptic number.

It is an amenable number.

2144487648 is an abundant number, since it is smaller than the sum of its proper divisors (3484792680).

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

2144487648 is a wasteful number, since it uses less digits than its factorization.

2144487648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338426 (or 22338418 counting only the distinct ones).

The product of its digits is 1376256, while the sum is 48.

The square root of 2144487648 is about 46308.6131081465. The cubic root of 2144487648 is about 1289.5588997260.

The spelling of 2144487648 in words is "two billion, one hundred forty-four million, four hundred eighty-seven thousand, six hundred forty-eight".