1380329 has 2 divisors, whose sum is σ = 1380330. Its totient is φ = 1380328.

The previous prime is 1380319. The next prime is 1380341. The reversal of 1380329 is 9230831.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1357225 + 23104 = 1165^2 + 152^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380329 - 2²⁰ = 331753 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1380298 and 1380307.

It is not a weakly prime, because it can be changed into another prime (1380319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690164 + 690165.

It is an arithmetic number, because the mean of its divisors is an integer number (690165).

2^1380329 is an apocalyptic number.

It is an amenable number.

1380329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380329 is an equidigital number, since it uses as much as digits as its factorization.

1380329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1380329 is about 1174.8740358013. The cubic root of 1380329 is about 111.3424749765.

The spelling of 1380329 in words is "one million, three hundred eighty thousand, three hundred twenty-nine".