1386969243 has 32 divisors (see below), whose sum is σ = 2068975872. Its totient is φ = 819312000.

The previous prime is 1386969179. The next prime is 1386969247. The reversal of 1386969243 is 3429696831.

It is not a de Polignac number, because 1386969243 - 2⁶ = 1386969179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1386969247) 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 31 ways as a sum of consecutive naturals, for example, 272068 + ... + 277118.

It is an arithmetic number, because the mean of its divisors is an integer number (64655496).

Almost surely, 2^1386969243 is an apocalyptic number.

1386969243 is a deficient number, since it is larger than the sum of its proper divisors (682006629).

1386969243 is a wasteful number, since it uses less digits than its factorization.

1386969243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275.

The product of its digits is 1679616, while the sum is 51.

The square root of 1386969243 is about 37242.0359674387. The cubic root of 1386969243 is about 1115.2073167829.

The spelling of 1386969243 in words is "one billion, three hundred eighty-six million, nine hundred sixty-nine thousand, two hundred forty-three".