1385804 has 24 divisors (see below), whose sum is σ = 2838528. Its totient is φ = 579600.

The previous prime is 1385801. The next prime is 1385809. The reversal of 1385804 is 4085831.

It is not an unprimeable number, because it can be changed into a prime (1385801) 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, 629 + ... + 1779.

It is an arithmetic number, because the mean of its divisors is an integer number (118272).

2^1385804 is an apocalyptic number.

1385804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1385804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1419264).

1385804 is an abundant number, since it is smaller than the sum of its proper divisors (1452724).

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

1385804 is a wasteful number, since it uses less digits than its factorization.

1385804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205 (or 1203 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1385804 is about 1177.2017669032. The cubic root of 1385804 is about 111.4894920621.

The spelling of 1385804 in words is "one million, three hundred eighty-five thousand, eight hundred four".