1089024 has 40 divisors (see below), whose sum is σ = 2905320. Its totient is φ = 362496.

The previous prime is 1089017. The next prime is 1089029. The reversal of 1089024 is 4209801.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1088985 and 1089003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182 + ... + 1890.

It is an arithmetic number, because the mean of its divisors is an integer number (72633).

2^1089024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1089024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1452660).

1089024 is an abundant number, since it is smaller than the sum of its proper divisors (1816296).

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

1089024 is an frugal number, since it uses more digits than its factorization.

1089024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 714 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1089024 is about 1043.5631269837. The cubic root of 1089024 is about 102.8835205717.

The spelling of 1089024 in words is "one million, eighty-nine thousand, twenty-four".