1438804 has 6 divisors (see below), whose sum is σ = 2517914. Its totient is φ = 719400.

The previous prime is 1438793. The next prime is 1438817. The reversal of 1438804 is 4088341.

It can be written as a sum of positive squares in only one way, i.e., 1435204 + 3600 = 1198^2 + 60^2 .

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 as a sum of consecutive naturals, namely, 179847 + ... + 179854.

2^1438804 is an apocalyptic number.

It is an amenable number.

1438804 is a deficient number, since it is larger than the sum of its proper divisors (1079110).

1438804 is a wasteful number, since it uses less digits than its factorization.

1438804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359705 (or 359703 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 1438804 is about 1199.5015631503. The cubic root of 1438804 is about 112.8930514984.

The spelling of 1438804 in words is "one million, four hundred thirty-eight thousand, eight hundred four".