1438379 has 2 divisors, whose sum is σ = 1438380. Its totient is φ = 1438378.

The previous prime is 1438303. The next prime is 1438399. The reversal of 1438379 is 9738341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1438379 - 2⁸ = 1438123 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1438399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 719189 + 719190.

It is an arithmetic number, because the mean of its divisors is an integer number (719190).

2^1438379 is an apocalyptic number.

1438379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438379 is an equidigital number, since it uses as much as digits as its factorization.

1438379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 1438379 is about 1199.3243931481. The cubic root of 1438379 is about 112.8819347950.

The spelling of 1438379 in words is "one million, four hundred thirty-eight thousand, three hundred seventy-nine".