1089828 has 24 divisors (see below), whose sum is σ = 2825760. Its totient is φ = 363240.

The previous prime is 1089799. The next prime is 1089841. The reversal of 1089828 is 8289801.

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 = 1089792 and 1089801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4938 + ... + 5153.

It is an arithmetic number, because the mean of its divisors is an integer number (117740).

2^1089828 is an apocalyptic number.

1089828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1089828 is an abundant number, since it is smaller than the sum of its proper divisors (1735932).

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

1089828 is a wasteful number, since it uses less digits than its factorization.

1089828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10104 (or 10096 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1089828 is about 1043.9482745807. The cubic root of 1089828 is about 102.9088331460.

The spelling of 1089828 in words is "one million, eighty-nine thousand, eight hundred twenty-eight".