1028449 has 4 divisors (see below), whose sum is σ = 1088964. Its totient is φ = 967936.

The previous prime is 1028437. The next prime is 1028471. The reversal of 1028449 is 9448201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 893025 + 135424 = 945^2 + 368^2 .

It is a cyclic number.

It is not a de Polignac number, because 1028449 - 2¹¹ = 1026401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1028479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30232 + ... + 30265.

It is an arithmetic number, because the mean of its divisors is an integer number (272241).

2^1028449 is an apocalyptic number.

It is an amenable number.

1028449 is a deficient number, since it is larger than the sum of its proper divisors (60515).

1028449 is an equidigital number, since it uses as much as digits as its factorization.

1028449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60514.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1028449 is about 1014.1247457783. The cubic root of 1028449 is about 100.9394467606.

The spelling of 1028449 in words is "one million, twenty-eight thousand, four hundred forty-nine".