1438285 has 8 divisors (see below), whose sum is σ = 1827576. Its totient is φ = 1082880.

The previous prime is 1438279. The next prime is 1438291. The reversal of 1438285 is 5828341.

It is an interprime number because it is at equal distance from previous prime (1438279) and next prime (1438291).

It can be written as a sum of positive squares in 4 ways, for example, as 434281 + 1004004 = 659^2 + 1002^2 .

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

It is not a de Polignac number, because 1438285 - 2⁵ = 1438253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8376 + ... + 8545.

It is an arithmetic number, because the mean of its divisors is an integer number (228447).

2^1438285 is an apocalyptic number.

It is an amenable number.

1438285 is a deficient number, since it is larger than the sum of its proper divisors (389291).

1438285 is a wasteful number, since it uses less digits than its factorization.

1438285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16943.

The product of its digits is 7680, while the sum is 31.

The square root of 1438285 is about 1199.2852037777. The cubic root of 1438285 is about 112.8794757461.

The spelling of 1438285 in words is "one million, four hundred thirty-eight thousand, two hundred eighty-five".