2144228738 has 48 divisors (see below), whose sum is σ = 3454176960. Its totient is φ = 997668672.

The previous prime is 2144228711. The next prime is 2144228741. The reversal of 2144228738 is 8378224412.

It is a junction number, because it is equal to n+sod(n) for n = 2144228695 and 2144228704.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5972603 + ... + 5972961.

It is an arithmetic number, because the mean of its divisors is an integer number (71962020).

Almost surely, 2^2144228738 is an apocalyptic number.

2144228738 is a deficient number, since it is larger than the sum of its proper divisors (1309948222).

2144228738 is a wasteful number, since it uses less digits than its factorization.

2144228738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 510 counting only the distinct ones).

The product of its digits is 172032, while the sum is 41.

The square root of 2144228738 is about 46305.8175394842. The cubic root of 2144228738 is about 1289.5070002847.

The spelling of 2144228738 in words is "two billion, one hundred forty-four million, two hundred twenty-eight thousand, seven hundred thirty-eight".