2144013994 has 4 divisors (see below), whose sum is σ = 3216020994. Its totient is φ = 1072006996.

The previous prime is 2144013959. The next prime is 2144014001. The reversal of 2144013994 is 4993104412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1976958369 + 167055625 = 44463^2 + 12925^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536003497 + ... + 536003500.

Almost surely, 2^2144013994 is an apocalyptic number.

2144013994 is a deficient number, since it is larger than the sum of its proper divisors (1072007000).

2144013994 is a wasteful number, since it uses less digits than its factorization.

2144013994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072006999.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2144013994 is about 46303.4987230987. The cubic root of 2144013994 is about 1289.4639509074.

The spelling of 2144013994 in words is "two billion, one hundred forty-four million, thirteen thousand, nine hundred ninety-four".