1957443050 has 12 divisors (see below), whose sum is σ = 3640844166. Its totient is φ = 782977200.

The previous prime is 1957443043. The next prime is 1957443071. The reversal of 1957443050 is 503447591.

It is a Cunningham number, because it is equal to 44243²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 1803955729 + 153487321 = 42473^2 + 12389^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1957442995 and 1957443013.

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, 19574381 + ... + 19574480.

Almost surely, 2^1957443050 is an apocalyptic number.

1957443050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1957443050 is a deficient number, since it is larger than the sum of its proper divisors (1683401116).

1957443050 is a wasteful number, since it uses less digits than its factorization.

1957443050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39148873 (or 39148868 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 1957443050 is about 44243.0000113012. Note that the first 4 decimals coincide. The cubic root of 1957443050 is about 1250.9205059686.

The spelling of 1957443050 in words is "one billion, nine hundred fifty-seven million, four hundred forty-three thousand, fifty".