2381329 has 2 divisors, whose sum is σ = 2381330. Its totient is φ = 2381328.

The previous prime is 2381317. The next prime is 2381339. The reversal of 2381329 is 9231832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2169729 + 211600 = 1473^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2381329 - 2⁷ = 2381201 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2381297 and 2381306.

It is not a weakly prime, because it can be changed into another prime (2381339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1190664 + 1190665.

It is an arithmetic number, because the mean of its divisors is an integer number (1190665).

2^2381329 is an apocalyptic number.

It is an amenable number.

2381329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2381329 is an equidigital number, since it uses as much as digits as its factorization.

2381329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

The square root of 2381329 is about 1543.1555333148. The cubic root of 2381329 is about 133.5384918020.

The spelling of 2381329 in words is "two million, three hundred eighty-one thousand, three hundred twenty-nine".