2438321 has 2 divisors, whose sum is σ = 2438322. Its totient is φ = 2438320.

The previous prime is 2438309. The next prime is 2438329. The reversal of 2438321 is 1238342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2436721 + 1600 = 1561^2 + 40^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2438321 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2438329) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1219160 + 1219161.

It is an arithmetic number, because the mean of its divisors is an integer number (1219161).

2^2438321 is an apocalyptic number.

It is an amenable number.

2438321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2438321 is an equidigital number, since it uses as much as digits as its factorization.

2438321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 23.

The square root of 2438321 is about 1561.5124078918. The cubic root of 2438321 is about 134.5954234097.

The spelling of 2438321 in words is "two million, four hundred thirty-eight thousand, three hundred twenty-one".