1366942 has 4 divisors (see below), whose sum is σ = 2050416. Its totient is φ = 683470.

The previous prime is 1366933. The next prime is 1366943. The reversal of 1366942 is 2496631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2496631 = 107 ⋅23333.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366943) 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, 341734 + ... + 341737.

It is an arithmetic number, because the mean of its divisors is an integer number (512604).

2^1366942 is an apocalyptic number.

1366942 is a deficient number, since it is larger than the sum of its proper divisors (683474).

1366942 is an equidigital number, since it uses as much as digits as its factorization.

1366942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683473.

The product of its digits is 7776, while the sum is 31.

The square root of 1366942 is about 1169.1629484379. The cubic root of 1366942 is about 110.9813566070.

The spelling of 1366942 in words is "one million, three hundred sixty-six thousand, nine hundred forty-two".