1366140 has 24 divisors (see below), whose sum is σ = 3825360. Its totient is φ = 364288.

The previous prime is 1366121. The next prime is 1366159. The reversal of 1366140 is 416631.

It is an interprime number because it is at equal distance from previous prime (1366121) and next prime (1366159).

It is a congruent number.

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, 11325 + ... + 11444.

It is an arithmetic number, because the mean of its divisors is an integer number (159390).

2^1366140 is an apocalyptic number.

1366140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1366140 is an abundant number, since it is smaller than the sum of its proper divisors (2459220).

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

1366140 is a wasteful number, since it uses less digits than its factorization.

1366140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22781 (or 22779 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1366140 is about 1168.8199176948. The cubic root of 1366140 is about 110.9596476974.

The spelling of 1366140 in words is "one million, three hundred sixty-six thousand, one hundred forty".