1385888 has 48 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 566016.

The previous prime is 1385887. The next prime is 1385893. The reversal of 1385888 is 8885831.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1385887) 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, 5018 + ... + 5286.

It is an arithmetic number, because the mean of its divisors is an integer number (68040).

2^1385888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1385888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632960).

1385888 is an abundant number, since it is smaller than the sum of its proper divisors (1880032).

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

1385888 is a wasteful number, since it uses less digits than its factorization.

1385888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 301 counting only the distinct ones).

The product of its digits is 61440, while the sum is 41.

The square root of 1385888 is about 1177.2374441887. The cubic root of 1385888 is about 111.4917446481.

The spelling of 1385888 in words is "one million, three hundred eighty-five thousand, eight hundred eighty-eight".