2144607444 has 144 divisors (see below), whose sum is σ = 6547340800. Its totient is φ = 578207808.

The previous prime is 2144607427. The next prime is 2144607473. The reversal of 2144607444 is 4447064412.

2144607444 is a `hidden beast` number, since 2 + 1 + 4 + 4 + 607 + 4 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2144607399 and 2144607408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1469187 + ... + 1470645.

Almost surely, 2^2144607444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2144607444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3273670400).

2144607444 is an abundant number, since it is smaller than the sum of its proper divisors (4402733356).

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

2144607444 is a wasteful number, since it uses less digits than its factorization.

2144607444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802 (or 1797 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 36.

The square root of 2144607444 is about 46309.9065427690. The cubic root of 2144607444 is about 1289.5829118518.

The spelling of 2144607444 in words is "two billion, one hundred forty-four million, six hundred seven thousand, four hundred forty-four".