1944291378 has 8 divisors (see below), whose sum is σ = 3888582768. Its totient is φ = 648097124.

The previous prime is 1944291373. The next prime is 1944291403. The reversal of 1944291378 is 8731924491.

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

1944291378 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1944291373) 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, 162024276 + ... + 162024287.

It is an arithmetic number, because the mean of its divisors is an integer number (486072846).

Almost surely, 2^1944291378 is an apocalyptic number.

1944291378 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1944291378 is a wasteful number, since it uses less digits than its factorization.

1944291378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324048568.

The product of its digits is 435456, while the sum is 48.

The square root of 1944291378 is about 44094.1195399114. The cubic root of 1944291378 is about 1248.1126457226.

The spelling of 1944291378 in words is "one billion, nine hundred forty-four million, two hundred ninety-one thousand, three hundred seventy-eight".