2057449 has 4 divisors (see below), whose sum is σ = 2065536. Its totient is φ = 2049364.

The previous prime is 2057441. The next prime is 2057477. The reversal of 2057449 is 9447502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2057449 - 2³ = 2057441 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 2057449.

It is not an unprimeable number, because it can be changed into a prime (2057441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3649 + ... + 4174.

It is an arithmetic number, because the mean of its divisors is an integer number (516384).

2^2057449 is an apocalyptic number.

It is an amenable number.

2057449 is a deficient number, since it is larger than the sum of its proper divisors (8087).

2057449 is an equidigital number, since it uses as much as digits as its factorization.

2057449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8086.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 2057449 is about 1434.3810511855. The cubic root of 2057449 is about 127.1870886319.

The spelling of 2057449 in words is "two million, fifty-seven thousand, four hundred forty-nine".