1822849 has 6 divisors (see below), whose sum is σ = 2120514. Its totient is φ = 1562400.

The previous prime is 1822837. The next prime is 1822867. The reversal of 1822849 is 9482281.

It can be written as a sum of positive squares in only one way, i.e., 1117249 + 705600 = 1057^2 + 840^2 .

It is not a de Polignac number, because 1822849 - 2¹⁵ = 1790081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822549) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18552 + ... + 18649.

It is an arithmetic number, because the mean of its divisors is an integer number (353419).

2^1822849 is an apocalyptic number.

It is an amenable number.

1822849 is a deficient number, since it is larger than the sum of its proper divisors (297665).

1822849 is an equidigital number, since it uses as much as digits as its factorization.

1822849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37215 (or 37208 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 1822849 is about 1350.1292530717. The cubic root of 1822849 is about 122.1565892183.

The spelling of 1822849 in words is "one million, eight hundred twenty-two thousand, eight hundred forty-nine".