1388804 has 6 divisors (see below), whose sum is σ = 2430414. Its totient is φ = 694400.

The previous prime is 1388797. The next prime is 1388819. The reversal of 1388804 is 4088831.

It can be written as a sum of positive squares in only one way, i.e., 1188100 + 200704 = 1090^2 + 448^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173597 + ... + 173604.

It is an arithmetic number, because the mean of its divisors is an integer number (405069).

2^1388804 is an apocalyptic number.

It is an amenable number.

1388804 is a deficient number, since it is larger than the sum of its proper divisors (1041610).

1388804 is a wasteful number, since it uses less digits than its factorization.

1388804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347205 (or 347203 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 1388804 is about 1178.4752861219. The cubic root of 1388804 is about 111.5698852039.

The spelling of 1388804 in words is "one million, three hundred eighty-eight thousand, eight hundred four".