1128834 has 72 divisors (see below), whose sum is σ = 3065088. Its totient is φ = 293760.

The previous prime is 1128823. The next prime is 1128889. The reversal of 1128834 is 4388211.

It is a super-3 number, since 3×1128834³ = 4315305033328793112, which contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1128798 and 1128807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36399 + ... + 36429.

2^1128834 is an apocalyptic number.

1128834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532544).

1128834 is an abundant number, since it is smaller than the sum of its proper divisors (1936254).

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

1128834 is a wasteful number, since it uses less digits than its factorization.

1128834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 60 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1128834 is about 1062.4659994560. The cubic root of 1128834 is about 104.1222059503.

The spelling of 1128834 in words is "one million, one hundred twenty-eight thousand, eight hundred thirty-four".