2056338809 has 8 divisors (see below), whose sum is σ = 2351582208. Its totient is φ = 1761465600.

The previous prime is 2056338803. The next prime is 2056338811. The reversal of 2056338809 is 9088336502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2056338809 - 2¹⁶ = 2056273273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2056338809.

It is not an unprimeable number, because it can be changed into a prime (2056338803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80537 + ... + 102950.

It is an arithmetic number, because the mean of its divisors is an integer number (293947776).

Almost surely, 2^2056338809 is an apocalyptic number.

It is an amenable number.

2056338809 is a deficient number, since it is larger than the sum of its proper divisors (295243399).

2056338809 is a wasteful number, since it uses less digits than its factorization.

2056338809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185095.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 2056338809 is about 45346.8720972020. The cubic root of 2056338809 is about 1271.6420797301.

The spelling of 2056338809 in words is "two billion, fifty-six million, three hundred thirty-eight thousand, eight hundred nine".