1938375936 has 216 divisors, whose sum is σ = 6594957824. Its totient is φ = 535818240.

The previous prime is 1938375893. The next prime is 1938375997. The reversal of 1938375936 is 6395738391.

1938375936 is a `hidden beast` number, since 19 + 3 + 8 + 37 + 593 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 498030 + ... + 501906.

Almost surely, 2^1938375936 is an apocalyptic number.

1938375936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1938375936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3297478912).

1938375936 is an abundant number, since it is smaller than the sum of its proper divisors (4656581888).

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

1938375936 is a wasteful number, since it uses less digits than its factorization.

1938375936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937 (or 3920 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The square root of 1938375936 is about 44026.9909941618. The cubic root of 1938375936 is about 1246.8455794140.

The spelling of 1938375936 in words is "one billion, nine hundred thirty-eight million, three hundred seventy-five thousand, nine hundred thirty-six".