1843225 has 12 divisors (see below), whose sum is σ = 2420604. Its totient is φ = 1387520.

The previous prime is 1843217. The next prime is 1843241. The reversal of 1843225 is 5223481.

It can be written as a sum of positive squares in 6 ways, for example, as 197136 + 1646089 = 444^2 + 1283^2 .

It is not a de Polignac number, because 1843225 - 2³ = 1843217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1843225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1744 + ... + 2593.

It is an arithmetic number, because the mean of its divisors is an integer number (201717).

2^1843225 is an apocalyptic number.

It is an amenable number.

1843225 is a deficient number, since it is larger than the sum of its proper divisors (577379).

1843225 is a wasteful number, since it uses less digits than its factorization.

1843225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364 (or 4359 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1843225 is about 1357.6542269665. The cubic root of 1843225 is about 122.6100635131.

The spelling of 1843225 in words is "one million, eight hundred forty-three thousand, two hundred twenty-five".