1944384272 has 20 divisors (see below), whose sum is σ = 3829004556. Its totient is φ = 956254080.

The previous prime is 1944384259. The next prime is 1944384289. The reversal of 1944384272 is 2724834491.

It can be written as a sum of positive squares in 2 ways, for example, as 634233856 + 1310150416 = 25184^2 + 36196^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995123 + ... + 997074.

Almost surely, 2^1944384272 is an apocalyptic number.

It is an amenable number.

1944384272 is a deficient number, since it is larger than the sum of its proper divisors (1884620284).

1944384272 is a wasteful number, since it uses less digits than its factorization.

1944384272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992266 (or 1992260 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 1944384272 is about 44095.1728877436. The cubic root of 1944384272 is about 1248.1325227724.

The spelling of 1944384272 in words is "one billion, nine hundred forty-four million, three hundred eighty-four thousand, two hundred seventy-two".