2243648144 has 20 divisors (see below), whose sum is σ = 4348035696. Its totient is φ = 1121574432.

The previous prime is 2243648131. The next prime is 2243648149. The reversal of 2243648144 is 4418463422.

It is a junction number, because it is equal to n+sod(n) for n = 2243648098 and 2243648107.

It is not an unprimeable number, because it can be changed into a prime (2243648149) 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, 74207 + ... + 99969.

Almost surely, 2^2243648144 is an apocalyptic number.

It is an amenable number.

2243648144 is a deficient number, since it is larger than the sum of its proper divisors (2104387552).

2243648144 is a wasteful number, since it uses less digits than its factorization.

2243648144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31214 (or 31208 counting only the distinct ones).

The product of its digits is 147456, while the sum is 38.

The square root of 2243648144 is about 47367.1631407244. The cubic root of 2243648144 is about 1309.1364555304.

The spelling of 2243648144 in words is "two billion, two hundred forty-three million, six hundred forty-eight thousand, one hundred forty-four".