1366730 has 16 divisors (see below), whose sum is σ = 2487240. Its totient is φ = 540672.

The previous prime is 1366721. The next prime is 1366747. The reversal of 1366730 is 376631.

It can be written as a sum of positive squares in 4 ways, for example, as 628849 + 737881 = 793^2 + 859^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1366730.

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 in 7 ways as a sum of consecutive naturals, for example, 266 + ... + 1674.

2^1366730 is an apocalyptic number.

1366730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1366730 is a deficient number, since it is larger than the sum of its proper divisors (1120510).

1366730 is a wasteful number, since it uses less digits than its factorization.

1366730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 1366730 is about 1169.0722817688. The cubic root of 1366730 is about 110.9756189180.

Subtracting from 1366730 its reverse (376631), we obtain a palindrome (990099).

The spelling of 1366730 in words is "one million, three hundred sixty-six thousand, seven hundred thirty".