1366746343 has 4 divisors (see below), whose sum is σ = 1372767480. Its totient is φ = 1360725208.

The previous prime is 1366746301. The next prime is 1366746377. The reversal of 1366746343 is 3436476631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3436476631 = 7 ⋅490925233.

It is a cyclic number.

It is not a de Polignac number, because 1366746343 - 2¹³ = 1366738151 is a prime.

It is a super-2 number, since 2×1366746343² = 3735991132207747298, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1366746343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366746643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3010228 + ... + 3010681.

It is an arithmetic number, because the mean of its divisors is an integer number (343191870).

Almost surely, 2^1366746343 is an apocalyptic number.

1366746343 is a deficient number, since it is larger than the sum of its proper divisors (6021137).

1366746343 is an equidigital number, since it uses as much as digits as its factorization.

1366746343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6021136.

The product of its digits is 653184, while the sum is 43.

The square root of 1366746343 is about 36969.5326316144. The cubic root of 1366746343 is about 1109.7606125541.

The spelling of 1366746343 in words is "one billion, three hundred sixty-six million, seven hundred forty-six thousand, three hundred forty-three".