1824425 has 6 divisors (see below), whose sum is σ = 2262318. Its totient is φ = 1459520.

The previous prime is 1824421. The next prime is 1824451. The reversal of 1824425 is 5244281.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4624 + 1819801 = 68^2 + 1349^2 .

It is not a de Polignac number, because 1824425 - 2² = 1824421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1824394 and 1824403.

It is not an unprimeable number, because it can be changed into a prime (1824421) 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 in 5 ways as a sum of consecutive naturals, for example, 36464 + ... + 36513.

It is an arithmetic number, because the mean of its divisors is an integer number (377053).

2^1824425 is an apocalyptic number.

It is an amenable number.

1824425 is a deficient number, since it is larger than the sum of its proper divisors (437893).

1824425 is an equidigital number, since it uses as much as digits as its factorization.

1824425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72987 (or 72982 counting only the distinct ones).

The product of its digits is 2560, while the sum is 26.

The square root of 1824425 is about 1350.7127747971. The cubic root of 1824425 is about 122.1917838190.

The spelling of 1824425 in words is "one million, eight hundred twenty-four thousand, four hundred twenty-five".