2144404549 has 8 divisors (see below), whose sum is σ = 2461268160. Its totient is φ = 1830170976.

The previous prime is 2144404547. The next prime is 2144404579. The reversal of 2144404549 is 9454044412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2144404549 - 2¹ = 2144404547 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144404547) 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, 655759 + ... + 659020.

It is an arithmetic number, because the mean of its divisors is an integer number (307658520).

Almost surely, 2^2144404549 is an apocalyptic number.

It is an amenable number.

2144404549 is a deficient number, since it is larger than the sum of its proper divisors (316863611).

2144404549 is a wasteful number, since it uses less digits than its factorization.

2144404549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1315019.

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 2144404549 is about 46307.7158689564. The cubic root of 2144404549 is about 1289.5422426876.

The spelling of 2144404549 in words is "two billion, one hundred forty-four million, four hundred four thousand, five hundred forty-nine".