1938768344 has 8 divisors (see below), whose sum is σ = 3635190660. Its totient is φ = 969384168.

The previous prime is 1938768343. The next prime is 1938768373. The reversal of 1938768344 is 4438678391.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1938768343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121173014 + ... + 121173029.

Almost surely, 2^1938768344 is an apocalyptic number.

It is an amenable number.

1938768344 is a deficient number, since it is larger than the sum of its proper divisors (1696422316).

1938768344 is a wasteful number, since it uses less digits than its factorization.

1938768344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242346049 (or 242346045 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The square root of 1938768344 is about 44031.4472167336. The cubic root of 1938768344 is about 1246.9297115575.

The spelling of 1938768344 in words is "one billion, nine hundred thirty-eight million, seven hundred sixty-eight thousand, three hundred forty-four".