1338769 has 4 divisors (see below), whose sum is σ = 1361520. Its totient is φ = 1316020.

The previous prime is 1338751. The next prime is 1338781. The reversal of 1338769 is 9678331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1338769 - 2⁵ = 1338737 is a prime.

It is a super-2 number, since 2×1338769² = 3584604870722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1338749) 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, 11287 + ... + 11404.

It is an arithmetic number, because the mean of its divisors is an integer number (340380).

2^1338769 is an apocalyptic number.

It is an amenable number.

1338769 is a deficient number, since it is larger than the sum of its proper divisors (22751).

1338769 is an equidigital number, since it uses as much as digits as its factorization.

1338769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22750.

The product of its digits is 27216, while the sum is 37.

The square root of 1338769 is about 1157.0518570920. The cubic root of 1338769 is about 110.2136069706.

It can be divided in two parts, 13387 and 69, that added together give a square (13456 = 116²).

The spelling of 1338769 in words is "one million, three hundred thirty-eight thousand, seven hundred sixty-nine".