1438069 has 2 divisors, whose sum is σ = 1438070. Its totient is φ = 1438068.

The previous prime is 1438067. The next prime is 1438093. The reversal of 1438069 is 9608341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1368900 + 69169 = 1170^2 + 263^2 .

It is an emirp because it is prime and its reverse (9608341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1438069 - 2¹ = 1438067 is a prime.

It is a super-2 number, since 2×1438069² = 4136084897522, which contains 22 as substring.

Together with 1438067, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1438069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1438061) 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, 719034 + 719035.

It is an arithmetic number, because the mean of its divisors is an integer number (719035).

2^1438069 is an apocalyptic number.

It is an amenable number.

1438069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1438069 is an equidigital number, since it uses as much as digits as its factorization.

1438069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1438069 is about 1199.1951467547. The cubic root of 1438069 is about 112.8738247595.

It can be divided in two parts, 14 and 38069, that added together give a palindrome (38083).

The spelling of 1438069 in words is "one million, four hundred thirty-eight thousand, sixty-nine".