1841321 has 8 divisors (see below), whose sum is σ = 1973160. Its totient is φ = 1712128.

The previous prime is 1841317. The next prime is 1841327. The reversal of 1841321 is 1231481.

It can be written as a sum of positive squares in 4 ways, for example, as 151321 + 1690000 = 389^2 + 1300^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1841321 - 2² = 1841317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1841293 and 1841302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1841327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905 + ... + 2121.

It is an arithmetic number, because the mean of its divisors is an integer number (246645).

2^1841321 is an apocalyptic number.

It is an amenable number.

1841321 is a deficient number, since it is larger than the sum of its proper divisors (131839).

1841321 is a wasteful number, since it uses less digits than its factorization.

1841321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323.

The product of its digits is 192, while the sum is 20.

The square root of 1841321 is about 1356.9528363211. The cubic root of 1841321 is about 122.5678313766.

The spelling of 1841321 in words is "one million, eight hundred forty-one thousand, three hundred twenty-one".