1128484 has 24 divisors (see below), whose sum is σ = 2314368. Its totient is φ = 471360.

The previous prime is 1128451. The next prime is 1128497. The reversal of 1128484 is 4848211.

It is a super-2 number, since 2×1128484² = 2546952276512, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

1128484 is a modest number, since divided by 8484 gives 112 as remainder.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 657 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (96432).

2^1128484 is an apocalyptic number.

1128484 is a gapful number since it is divisible by the number (14) 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 1128484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1157184).

1128484 is an abundant number, since it is smaller than the sum of its proper divisors (1185884).

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

1128484 is a wasteful number, since it uses less digits than its factorization.

1128484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035 (or 1033 counting only the distinct ones).

The product of its digits is 2048, while the sum is 28.

The square root of 1128484 is about 1062.3012755335. The cubic root of 1128484 is about 104.1114436536. Note that the first 3 decimals are identical.

The spelling of 1128484 in words is "one million, one hundred twenty-eight thousand, four hundred eighty-four".