1385868 has 24 divisors (see below), whose sum is σ = 3528000. Its totient is φ = 419920.

The previous prime is 1385863. The next prime is 1385869. The reversal of 1385868 is 8685831.

It is a happy number.

It is a super-2 number, since 2×1385868² = 3841260226848, which contains 22 as substring.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1385861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5118 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (147000).

2^1385868 is an apocalyptic number.

It is an amenable number.

1385868 is an abundant number, since it is smaller than the sum of its proper divisors (2142132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1385868 is a wasteful number, since it uses less digits than its factorization.

1385868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10517 (or 10515 counting only the distinct ones).

The product of its digits is 46080, while the sum is 39.

The square root of 1385868 is about 1177.2289496950. The cubic root of 1385868 is about 111.4912083264.

It can be divided in two parts, 138 and 5868, that added together give a palindrome (6006).

The spelling of 1385868 in words is "one million, three hundred eighty-five thousand, eight hundred sixty-eight".