1438871 has 4 divisors (see below), whose sum is σ = 1644432. Its totient is φ = 1233312.

The previous prime is 1438867. The next prime is 1438883. The reversal of 1438871 is 1788341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1438871 - 2² = 1438867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438831) 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, 102770 + ... + 102783.

It is an arithmetic number, because the mean of its divisors is an integer number (411108).

2^1438871 is an apocalyptic number.

1438871 is a deficient number, since it is larger than the sum of its proper divisors (205561).

1438871 is an equidigital number, since it uses as much as digits as its factorization.

1438871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205560.

The product of its digits is 5376, while the sum is 32.

The square root of 1438871 is about 1199.5294910922. The cubic root of 1438871 is about 112.8948038142.

The spelling of 1438871 in words is "one million, four hundred thirty-eight thousand, eight hundred seventy-one".