1366320 has 40 divisors (see below), whose sum is σ = 4236336. Its totient is φ = 364288.

The previous prime is 1366303. The next prime is 1366327. The reversal of 1366320 is 236631.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1366327) 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, 2607 + ... + 3086.

2^1366320 is an apocalyptic number.

1366320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366320 is an abundant number, since it is smaller than the sum of its proper divisors (2870016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1366320 is a wasteful number, since it uses less digits than its factorization.

1366320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709 (or 5703 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1366320 is about 1168.8969158998. The cubic root of 1366320 is about 110.9645207605.

The spelling of 1366320 in words is "one million, three hundred sixty-six thousand, three hundred twenty".