1385638862 has 4 divisors (see below), whose sum is σ = 2078458296. Its totient is φ = 692819430.

The previous prime is 1385638861. The next prime is 1385638867. The reversal of 1385638862 is 2688365831.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1385638862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385638861) 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 as a sum of consecutive naturals, namely, 346409714 + ... + 346409717.

It is an arithmetic number, because the mean of its divisors is an integer number (519614574).

Almost surely, 2^1385638862 is an apocalyptic number.

1385638862 is a deficient number, since it is larger than the sum of its proper divisors (692819434).

1385638862 is an equidigital number, since it uses as much as digits as its factorization.

1385638862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692819433.

The product of its digits is 1658880, while the sum is 50.

The square root of 1385638862 is about 37224.1704004267. The cubic root of 1385638862 is about 1114.8506337350.

The spelling of 1385638862 in words is "one billion, three hundred eighty-five million, six hundred thirty-eight thousand, eight hundred sixty-two".