1366004 has 6 divisors (see below), whose sum is σ = 2390514. Its totient is φ = 683000.

The previous prime is 1365983. The next prime is 1366009. The reversal of 1366004 is 4006631.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 425104 = 970^2 + 652^2 .

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366009) 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 as a sum of consecutive naturals, namely, 170747 + ... + 170754.

It is an arithmetic number, because the mean of its divisors is an integer number (398419).

2^1366004 is an apocalyptic number.

It is an amenable number.

1366004 is a deficient number, since it is larger than the sum of its proper divisors (1024510).

1366004 is a wasteful number, since it uses less digits than its factorization.

1366004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341505 (or 341503 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1366004 is about 1168.7617379090. The cubic root of 1366004 is about 110.9559655436.

The spelling of 1366004 in words is "one million, three hundred sixty-six thousand, four".