1438842 has 8 divisors (see below), whose sum is σ = 2877696. Its totient is φ = 479612.

The previous prime is 1438837. The next prime is 1438847. The reversal of 1438842 is 2488341.

It is an interprime number because it is at equal distance from previous prime (1438837) and next prime (1438847).

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

1438842 is an admirable number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1438847) 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, 119898 + ... + 119909.

It is an arithmetic number, because the mean of its divisors is an integer number (359712).

2^1438842 is an apocalyptic number.

1438842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1438842 is a wasteful number, since it uses less digits than its factorization.

1438842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239812.

The product of its digits is 6144, while the sum is 30.

The square root of 1438842 is about 1199.5174029584. The cubic root of 1438842 is about 112.8940453558.

The spelling of 1438842 in words is "one million, four hundred thirty-eight thousand, eight hundred forty-two".