1438085 has 12 divisors (see below), whose sum is σ = 1897644. Its totient is φ = 1045440.

The previous prime is 1438069. The next prime is 1438093. The reversal of 1438085 is 5808341.

It can be written as a sum of positive squares in 2 ways, for example, as 543169 + 894916 = 737^2 + 946^2 .

It is not a de Polignac number, because 1438085 - 2⁴ = 1438069 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon 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 11 ways as a sum of consecutive naturals, for example, 584 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (158137).

2^1438085 is an apocalyptic number.

It is an amenable number.

1438085 is a deficient number, since it is larger than the sum of its proper divisors (459559).

1438085 is a wasteful number, since it uses less digits than its factorization.

1438085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2404 (or 2393 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1438085 is about 1199.2018178772. The cubic root of 1438085 is about 112.8742433705.

It can be divided in two parts, 143 and 8085, that added together give a palindrome (8228).

The spelling of 1438085 in words is "one million, four hundred thirty-eight thousand, eighty-five".