1338965 has 8 divisors (see below), whose sum is σ = 1614168. Its totient is φ = 1066240.

The previous prime is 1338941. The next prime is 1338979. The reversal of 1338965 is 5698331.

It can be written as a sum of positive squares in 4 ways, for example, as 174724 + 1164241 = 418^2 + 1079^2 .

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

It is not a de Polignac number, because 1338965 - 2¹⁸ = 1076821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 929 + ... + 1881.

It is an arithmetic number, because the mean of its divisors is an integer number (201771).

2^1338965 is an apocalyptic number.

It is an amenable number.

1338965 is a deficient number, since it is larger than the sum of its proper divisors (275203).

1338965 is an equidigital number, since it uses as much as digits as its factorization.

1338965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239.

The product of its digits is 19440, while the sum is 35.

The square root of 1338965 is about 1157.1365520110. The cubic root of 1338965 is about 110.2189852480.

The spelling of 1338965 in words is "one million, three hundred thirty-eight thousand, nine hundred sixty-five".