1128276 has 48 divisors (see below), whose sum is σ = 3028480. Its totient is φ = 362880.

The previous prime is 1128251. The next prime is 1128287. The reversal of 1128276 is 6728211.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3180 + ... + 3516.

2^1128276 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 1128276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1514240).

1128276 is an abundant number, since it is smaller than the sum of its proper divisors (1900204).

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

1128276 is a wasteful number, since it uses less digits than its factorization.

1128276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 373 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 1128276 is about 1062.2033703580. The cubic root of 1128276 is about 104.1050467203.

The spelling of 1128276 in words is "one million, one hundred twenty-eight thousand, two hundred seventy-six".