1938939050 has 12 divisors (see below), whose sum is σ = 3606426726. Its totient is φ = 775575600.

The previous prime is 1938939049. The next prime is 1938939061. The reversal of 1938939050 is 509398391.

It can be written as a sum of positive squares in 3 ways, for example, as 1327217761 + 611721289 = 36431^2 + 24733^2 .

It is a super-2 number, since 2×1938939050² = 7518969279229805000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1938938986 and 1938939004.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 19389341 + ... + 19389440.

Almost surely, 2^1938939050 is an apocalyptic number.

1938939050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1938939050 is a deficient number, since it is larger than the sum of its proper divisors (1667487676).

1938939050 is a wasteful number, since it uses less digits than its factorization.

1938939050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38778793 (or 38778788 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 47.

The square root of 1938939050 is about 44033.3856295425. The cubic root of 1938939050 is about 1246.9663073233.

The spelling of 1938939050 in words is "one billion, nine hundred thirty-eight million, nine hundred thirty-nine thousand, fifty".