1386304 has 14 divisors (see below), whose sum is σ = 2751074. Its totient is φ = 693120.

The previous prime is 1386293. The next prime is 1386311. The reversal of 1386304 is 4036831.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 304704 = 1040^2 + 552^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10767 + ... + 10894.

2^1386304 is an apocalyptic number.

It is an amenable number.

1386304 is a deficient number, since it is larger than the sum of its proper divisors (1364770).

1386304 is an equidigital number, since it uses as much as digits as its factorization.

1386304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21673 (or 21663 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1386304 is about 1177.4141157639. The cubic root of 1386304 is about 111.5028989708.

The spelling of 1386304 in words is "one million, three hundred eighty-six thousand, three hundred four".