1089824 has 12 divisors (see below), whose sum is σ = 2145654. Its totient is φ = 544896.

The previous prime is 1089799. The next prime is 1089841. The reversal of 1089824 is 4289801.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 753424 + 336400 = 868^2 + 580^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 34057 = 1089824 / (1 + 0 + 8 + 9 + 8 + 2 + 4).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16997 + ... + 17060.

2^1089824 is an apocalyptic number.

It is an amenable number.

1089824 is a deficient number, since it is larger than the sum of its proper divisors (1055830).

1089824 is an equidigital number, since it uses as much as digits as its factorization.

1089824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34067 (or 34059 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1089824 is about 1043.9463587752. The cubic root of 1089824 is about 102.9087072436.

The spelling of 1089824 in words is "one million, eighty-nine thousand, eight hundred twenty-four".