1385784361 has 8 divisors (see below), whose sum is σ = 1570929920. Its totient is φ = 1211859792.

The previous prime is 1385784353. The next prime is 1385784373. The reversal of 1385784361 is 1634875831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1385784361 - 2³ = 1385784353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1385484361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2804985 + ... + 2805478.

It is an arithmetic number, because the mean of its divisors is an integer number (196366240).

Almost surely, 2^1385784361 is an apocalyptic number.

It is an amenable number.

1385784361 is a deficient number, since it is larger than the sum of its proper divisors (185145559).

1385784361 is a wasteful number, since it uses less digits than its factorization.

1385784361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5610495.

The product of its digits is 483840, while the sum is 46.

The square root of 1385784361 is about 37226.1247110144. The cubic root of 1385784361 is about 1114.8896539971.

The spelling of 1385784361 in words is "one billion, three hundred eighty-five million, seven hundred eighty-four thousand, three hundred sixty-one".