1940768378 has 8 divisors (see below), whose sum is σ = 2912098260. Its totient is φ = 970068960.

The previous prime is 1940768371. The next prime is 1940768383. The reversal of 1940768378 is 8738670491.

It can be written as a sum of positive squares in 2 ways, for example, as 1920455329 + 20313049 = 43823^2 + 4507^2 .

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 (1940768371) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 149843 + ... + 162278.

Almost surely, 2^1940768378 is an apocalyptic number.

1940768378 is a deficient number, since it is larger than the sum of its proper divisors (971329882).

1940768378 is a wasteful number, since it uses less digits than its factorization.

1940768378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315232.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The square root of 1940768378 is about 44054.1527894931. The cubic root of 1940768378 is about 1247.3583418866.

The spelling of 1940768378 in words is "one billion, nine hundred forty million, seven hundred sixty-eight thousand, three hundred seventy-eight".