1338845 has 8 divisors (see below), whose sum is σ = 1650264. Its totient is φ = 1041984.

The previous prime is 1338823. The next prime is 1338851. The reversal of 1338845 is 5488331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 466489 + 872356 = 683^2 + 934^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1338845 - 2⁶ = 1338781 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 3434 + ... + 3803.

It is an arithmetic number, because the mean of its divisors is an integer number (206283).

2^1338845 is an apocalyptic number.

It is an amenable number.

1338845 is a deficient number, since it is larger than the sum of its proper divisors (311419).

1338845 is an equidigital number, since it uses as much as digits as its factorization.

1338845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7279.

The product of its digits is 11520, while the sum is 32.

The square root of 1338845 is about 1157.0846987148. The cubic root of 1338845 is about 110.2156924874.

The spelling of 1338845 in words is "one million, three hundred thirty-eight thousand, eight hundred forty-five".