1438269 has 8 divisors (see below), whose sum is σ = 2191680. Its totient is φ = 821856.

The previous prime is 1438267. The next prime is 1438271. The reversal of 1438269 is 9628341.

It is an interprime number because it is at equal distance from previous prime (1438267) and next prime (1438271).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1438269 - 2¹ = 1438267 is a prime.

It is a super-2 number, since 2×1438269² = 4137235432722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438267) 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 in 7 ways as a sum of consecutive naturals, for example, 34224 + ... + 34265.

It is an arithmetic number, because the mean of its divisors is an integer number (273960).

2^1438269 is an apocalyptic number.

It is an amenable number.

1438269 is a deficient number, since it is larger than the sum of its proper divisors (753411).

1438269 is an equidigital number, since it uses as much as digits as its factorization.

1438269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68499.

The product of its digits is 10368, while the sum is 33.

The square root of 1438269 is about 1199.2785331190. The cubic root of 1438269 is about 112.8790571739.

It can be divided in two parts, 14 and 38269, that added together give a palindrome (38283).

The spelling of 1438269 in words is "one million, four hundred thirty-eight thousand, two hundred sixty-nine".