1944169378 has 8 divisors (see below), whose sum is σ = 2918925468. Its totient is φ = 971194224.

The previous prime is 1944169333. The next prime is 1944169379. The reversal of 1944169378 is 8739614491.

It can be written as a sum of positive squares in 2 ways, for example, as 1914325009 + 29844369 = 43753^2 + 5463^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1944169379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442501 + ... + 446872.

Almost surely, 2^1944169378 is an apocalyptic number.

1944169378 is a deficient number, since it is larger than the sum of its proper divisors (974756090).

1944169378 is a wasteful number, since it uses less digits than its factorization.

1944169378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890468.

The product of its digits is 1306368, while the sum is 52.

The square root of 1944169378 is about 44092.7361137864. The cubic root of 1944169378 is about 1248.0865397371.

The spelling of 1944169378 in words is "one billion, nine hundred forty-four million, one hundred sixty-nine thousand, three hundred seventy-eight".