2057385449 has 8 divisors (see below), whose sum is σ = 2353608768. Its totient is φ = 1761739920.

The previous prime is 2057385427. The next prime is 2057385467. The reversal of 2057385449 is 9445837502.

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 2057385449 - 2²⁴ = 2040608233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2057385469) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 136787 + ... + 151080.

It is an arithmetic number, because the mean of its divisors is an integer number (294201096).

Almost surely, 2^2057385449 is an apocalyptic number.

It is an amenable number.

2057385449 is a deficient number, since it is larger than the sum of its proper divisors (296223319).

2057385449 is a wasteful number, since it uses less digits than its factorization.

2057385449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288895.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The square root of 2057385449 is about 45358.4110061188. The cubic root of 2057385449 is about 1271.8577908950.

The spelling of 2057385449 in words is "two billion, fifty-seven million, three hundred eighty-five thousand, four hundred forty-nine".