1366742343 has 4 divisors (see below), whose sum is σ = 1822323128. Its totient is φ = 911161560.

The previous prime is 1366742341. The next prime is 1366742359. The reversal of 1366742343 is 3432476631.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1366742343 - 2¹ = 1366742341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1366742341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227790388 + ... + 227790393.

It is an arithmetic number, because the mean of its divisors is an integer number (455580782).

Almost surely, 2^1366742343 is an apocalyptic number.

1366742343 is a deficient number, since it is larger than the sum of its proper divisors (455580785).

1366742343 is an equidigital number, since it uses as much as digits as its factorization.

1366742343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455580784.

The product of its digits is 217728, while the sum is 39.

The square root of 1366742343 is about 36969.4785329737. The cubic root of 1366742343 is about 1109.7595299228.

The spelling of 1366742343 in words is "one billion, three hundred sixty-six million, seven hundred forty-two thousand, three hundred forty-three".