1128264 has 32 divisors (see below), whose sum is σ = 2877120. Its totient is φ = 368576.

The previous prime is 1128251. The next prime is 1128287. The reversal of 1128264 is 4628211.

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

It is a nude number because it is divisible by every one of its digits.

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, 829 + ... + 1715.

It is an arithmetic number, because the mean of its divisors is an integer number (89910).

2^1128264 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 1128264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1438560).

1128264 is an abundant number, since it is smaller than the sum of its proper divisors (1748856).

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

1128264 is a wasteful number, since it uses less digits than its factorization.

1128264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 945 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 1128264 is about 1062.1977217072. The cubic root of 1128264 is about 104.1046776424.

It can be divided in two parts, 1128 and 264, that multiplied together give a palindrome (297792).

The spelling of 1128264 in words is "one million, one hundred twenty-eight thousand, two hundred sixty-four".