1338771 has 16 divisors (see below), whose sum is σ = 2096384. Its totient is φ = 743904.

The previous prime is 1338751. The next prime is 1338781. The reversal of 1338771 is 1778331.

It is not a de Polignac number, because 1338771 - 2¹⁷ = 1207699 is a prime.

It is a Duffinian number.

1338771 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1338731) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 85 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (131024).

2^1338771 is an apocalyptic number.

1338771 is a deficient number, since it is larger than the sum of its proper divisors (757613).

1338771 is a wasteful number, since it uses less digits than its factorization.

1338771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770.

The product of its digits is 3528, while the sum is 30.

The square root of 1338771 is about 1157.0527213572. The cubic root of 1338771 is about 110.2136618537.

The spelling of 1338771 in words is "one million, three hundred thirty-eight thousand, seven hundred seventy-one".