1385826 has 32 divisors (see below), whose sum is σ = 3030720. Its totient is φ = 419904.

The previous prime is 1385809. The next prime is 1385827. The reversal of 1385826 is 6285831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8421 + ... + 8583.

It is an arithmetic number, because the mean of its divisors is an integer number (94710).

2^1385826 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1385826, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515360).

1385826 is an abundant number, since it is smaller than the sum of its proper divisors (1644894).

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

1385826 is a wasteful number, since it uses less digits than its factorization.

1385826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290.

The product of its digits is 11520, while the sum is 33.

The square root of 1385826 is about 1177.2111110587. The cubic root of 1385826 is about 111.4900820339.

It can be divided in two parts, 1385 and 826, that added together give a triangular number (2211 = T₆₆).

The spelling of 1385826 in words is "one million, three hundred eighty-five thousand, eight hundred twenty-six".