2052321 has 8 divisors (see below), whose sum is σ = 2743104. Its totient is φ = 1364880.

The previous prime is 2052317. The next prime is 2052329. The reversal of 2052321 is 1232502.

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

It is not a de Polignac number, because 2052321 - 2² = 2052317 is a prime.

It is a Curzon number.

2052321 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2052321.

It is not an unprimeable number, because it can be changed into a prime (2052329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1711 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (342888).

2^2052321 is an apocalyptic number.

It is an amenable number.

2052321 is a deficient number, since it is larger than the sum of its proper divisors (690783).

2052321 is an equidigital number, since it uses as much as digits as its factorization.

2052321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2052321 is about 1432.5924053966. The cubic root of 2052321 is about 127.0813333974.

Adding to 2052321 its reverse (1232502), we get a palindrome (3284823).

The spelling of 2052321 in words is "two million, fifty-two thousand, three hundred twenty-one".