1438916 has 12 divisors (see below), whose sum is σ = 2526720. Its totient is φ = 717000.

The previous prime is 1438907. The next prime is 1438919. The reversal of 1438916 is 6198341.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1438919) by changing a digit.

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, 1541 + ... + 2291.

It is an arithmetic number, because the mean of its divisors is an integer number (210560).

2^1438916 is an apocalyptic number.

It is an amenable number.

1438916 is a deficient number, since it is larger than the sum of its proper divisors (1087804).

1438916 is a wasteful number, since it uses less digits than its factorization.

1438916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1232 counting only the distinct ones).

The product of its digits is 5184, while the sum is 32.

The square root of 1438916 is about 1199.5482483002. The cubic root of 1438916 is about 112.8959807122.

The spelling of 1438916 in words is "one million, four hundred thirty-eight thousand, nine hundred sixteen".