1385028 has 36 divisors (see below), whose sum is σ = 3552640. Its totient is φ = 454896.

The previous prime is 1385023. The next prime is 1385039. The reversal of 1385028 is 8205831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1384992 and 1385010.

It is not an unprimeable number, because it can be changed into a prime (1385023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2601 + ... + 3087.

2^1385028 is an apocalyptic number.

1385028 is a gapful number since it is divisible by the number (18) 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 1385028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1776320).

1385028 is an abundant number, since it is smaller than the sum of its proper divisors (2167612).

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

1385028 is a wasteful number, since it uses less digits than its factorization.

1385028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 571 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1385028 is about 1176.8721255939. The cubic root of 1385028 is about 111.4686781520.

The spelling of 1385028 in words is "one million, three hundred eighty-five thousand, twenty-eight".