1438442 has 8 divisors (see below), whose sum is σ = 2179332. Its totient is φ = 712000.

The previous prime is 1438417. The next prime is 1438447. The reversal of 1438442 is 2448341.

It can be written as a sum of positive squares in 2 ways, for example, as 1437601 + 841 = 1199^2 + 29^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1438447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3359 + ... + 3762.

2^1438442 is an apocalyptic number.

1438442 is a deficient number, since it is larger than the sum of its proper divisors (740890).

1438442 is a wasteful number, since it uses less digits than its factorization.

1438442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7224.

The product of its digits is 3072, while the sum is 26.

The square root of 1438442 is about 1199.3506576477. The cubic root of 1438442 is about 112.8835828210.

The spelling of 1438442 in words is "one million, four hundred thirty-eight thousand, four hundred forty-two".