2056637938 has 24 divisors (see below), whose sum is σ = 3325197312. Its totient is φ = 953453592.

The previous prime is 2056637923. The next prime is 2056637939. The reversal of 2056637938 is 8397366502.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2056637891 and 2056637900.

It is not an unprimeable number, because it can be changed into a prime (2056637939) 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 11 ways as a sum of consecutive naturals, for example, 3631 + ... + 64237.

It is an arithmetic number, because the mean of its divisors is an integer number (138549888).

Almost surely, 2^2056637938 is an apocalyptic number.

2056637938 is a deficient number, since it is larger than the sum of its proper divisors (1268559374).

2056637938 is a wasteful number, since it uses less digits than its factorization.

2056637938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60694 (or 60675 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 49.

The square root of 2056637938 is about 45350.1702091624. The cubic root of 2056637938 is about 1271.7037373031.

The spelling of 2056637938 in words is "two billion, fifty-six million, six hundred thirty-seven thousand, nine hundred thirty-eight".