1385324943 has 4 divisors (see below), whose sum is σ = 1847099928. Its totient is φ = 923549960.

The previous prime is 1385324929. The next prime is 1385324947. The reversal of 1385324943 is 3494235831.

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

It is a cyclic number.

It is not a de Polignac number, because 1385324943 - 2⁵ = 1385324911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1385324895 and 1385324904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385324947) 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, 230887488 + ... + 230887493.

It is an arithmetic number, because the mean of its divisors is an integer number (461774982).

Almost surely, 2^1385324943 is an apocalyptic number.

1385324943 is a deficient number, since it is larger than the sum of its proper divisors (461774985).

1385324943 is an equidigital number, since it uses as much as digits as its factorization.

1385324943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461774984.

The product of its digits is 311040, while the sum is 42.

The square root of 1385324943 is about 37219.9535598851. The cubic root of 1385324943 is about 1114.7664368979.

The spelling of 1385324943 in words is "one billion, three hundred eighty-five million, three hundred twenty-four thousand, nine hundred forty-three".