1438342 has 8 divisors (see below), whose sum is σ = 2232000. Its totient is φ = 694344.

The previous prime is 1438303. The next prime is 1438379. The reversal of 1438342 is 2438341.

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

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 3 ways as a sum of consecutive naturals, for example, 12342 + ... + 12457.

It is an arithmetic number, because the mean of its divisors is an integer number (279000).

2^1438342 is an apocalyptic number.

1438342 is a deficient number, since it is larger than the sum of its proper divisors (793658).

1438342 is a wasteful number, since it uses less digits than its factorization.

1438342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24830.

The product of its digits is 2304, while the sum is 25.

The square root of 1438342 is about 1199.3089676976. The cubic root of 1438342 is about 112.8809668843.

Subtracting 1438342 from its reverse (2438341), we obtain a palindrome (999999).

The spelling of 1438342 in words is "one million, four hundred thirty-eight thousand, three hundred forty-two".