1366604 has 24 divisors (see below), whose sum is σ = 2515968. Its totient is φ = 648720.

The previous prime is 1366601. The next prime is 1366609. The reversal of 1366604 is 4066631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12719 + ... + 12825.

It is an arithmetic number, because the mean of its divisors is an integer number (104832).

2^1366604 is an apocalyptic number.

It is an amenable number.

1366604 is a deficient number, since it is larger than the sum of its proper divisors (1149364).

1366604 is a wasteful number, since it uses less digits than its factorization.

1366604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 243 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1366604 is about 1169.0183916432. The cubic root of 1366604 is about 110.9722085010.

The spelling of 1366604 in words is "one million, three hundred sixty-six thousand, six hundred four".