1386828 has 24 divisors (see below), whose sum is σ = 3595760. Its totient is φ = 462240.

The previous prime is 1386823. The next prime is 1386839. The reversal of 1386828 is 8286831.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1386792 and 1386801.

It is not an unprimeable number, because it can be changed into a prime (1386821) 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, 6313 + ... + 6528.

2^1386828 is an apocalyptic number.

1386828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1386828 is an abundant number, since it is smaller than the sum of its proper divisors (2208932).

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

1386828 is a wasteful number, since it uses less digits than its factorization.

1386828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12854 (or 12846 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 1386828 is about 1177.6366162786. The cubic root of 1386828 is about 111.5169459521.

The spelling of 1386828 in words is "one million, three hundred eighty-six thousand, eight hundred twenty-eight".