1824401 has 2 divisors, whose sum is σ = 1824402. Its totient is φ = 1824400.

The previous prime is 1824397. The next prime is 1824409. The reversal of 1824401 is 1044281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1809025 + 15376 = 1345^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 1824401 - 2² = 1824397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1824409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 912200 + 912201.

It is an arithmetic number, because the mean of its divisors is an integer number (912201).

2^1824401 is an apocalyptic number.

It is an amenable number.

1824401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1824401 is an equidigital number, since it uses as much as digits as its factorization.

1824401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1824401 is about 1350.7038905697. The cubic root of 1824401 is about 122.1912480127.

Adding to 1824401 its reverse (1044281), we get a palindrome (2868682).

The spelling of 1824401 in words is "one million, eight hundred twenty-four thousand, four hundred one".