1828019 has 2 divisors, whose sum is σ = 1828020. Its totient is φ = 1828018.

The previous prime is 1828003. The next prime is 1828051. The reversal of 1828019 is 9108281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1828019 - 2⁴ = 1828003 is a prime.

It is a super-2 number, since 2×1828019² = 6683306928722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1827982 and 1828000.

It is not a weakly prime, because it can be changed into another prime (1828069) 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 as a sum of consecutive naturals, namely, 914009 + 914010.

It is an arithmetic number, because the mean of its divisors is an integer number (914010).

2^1828019 is an apocalyptic number.

1828019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828019 is an equidigital number, since it uses as much as digits as its factorization.

1828019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 1828019 is about 1352.0425289169. The cubic root of 1828019 is about 122.2719678434.

The spelling of 1828019 in words is "one million, eight hundred twenty-eight thousand, nineteen".