1822441 has 2 divisors, whose sum is σ = 1822442. Its totient is φ = 1822440.

The previous prime is 1822439. The next prime is 1822463. The reversal of 1822441 is 1442281.

It is an a-pointer prime, because the next prime (1822463) can be obtained adding 1822441 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1638400 + 184041 = 1280^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 1822441 - 2¹ = 1822439 is a prime.

Together with 1822439, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1822411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911220 + 911221.

It is an arithmetic number, because the mean of its divisors is an integer number (911221).

2^1822441 is an apocalyptic number.

It is an amenable number.

1822441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822441 is an equidigital number, since it uses as much as digits as its factorization.

1822441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 22.

The square root of 1822441 is about 1349.9781479713. The cubic root of 1822441 is about 122.1474746203.

The spelling of 1822441 in words is "one million, eight hundred twenty-two thousand, four hundred forty-one".