1385373433 has 4 divisors (see below), whose sum is σ = 1385852580. Its totient is φ = 1384894288.

The previous prime is 1385373427. The next prime is 1385373439. The reversal of 1385373433 is 3343735831.

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

It is an interprime number because it is at equal distance from previous prime (1385373427) and next prime (1385373439).

It can be written as a sum of positive squares in 2 ways, for example, as 498048489 + 887324944 = 22317^2 + 29788^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385373433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385373439) 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, 235210 + ... + 241027.

It is an arithmetic number, because the mean of its divisors is an integer number (346463145).

Almost surely, 2^1385373433 is an apocalyptic number.

It is an amenable number.

1385373433 is a deficient number, since it is larger than the sum of its proper divisors (479147).

1385373433 is an equidigital number, since it uses as much as digits as its factorization.

1385373433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479146.

The product of its digits is 272160, while the sum is 40.

The square root of 1385373433 is about 37220.6049520961. The cubic root of 1385373433 is about 1114.7794433275.

The spelling of 1385373433 in words is "one billion, three hundred eighty-five million, three hundred seventy-three thousand, four hundred thirty-three".