1338829 has 4 divisors (see below), whose sum is σ = 1341340. Its totient is φ = 1336320.

The previous prime is 1338823. The next prime is 1338851. The reversal of 1338829 is 9288331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9288331 = 13 ⋅714487.

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 1177225 = 402^2 + 1085^2 .

It is a cyclic number.

It is not a de Polignac number, because 1338829 - 2¹¹ = 1336781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1338794 and 1338803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (335335).

2^1338829 is an apocalyptic number.

It is an amenable number.

1338829 is a deficient number, since it is larger than the sum of its proper divisors (2511).

1338829 is an equidigital number, since it uses as much as digits as its factorization.

1338829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510.

The product of its digits is 10368, while the sum is 34.

The square root of 1338829 is about 1157.0777847664. The cubic root of 1338829 is about 110.2152534378.

The spelling of 1338829 in words is "one million, three hundred thirty-eight thousand, eight hundred twenty-nine".