1128810 has 32 divisors (see below), whose sum is σ = 2737152. Its totient is φ = 297920.

The previous prime is 1128781. The next prime is 1128811. The reversal of 1128810 is 188211.

It is a super-2 number, since 2×1128810² = 2548424032200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1128811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5632 + ... + 5828.

It is an arithmetic number, because the mean of its divisors is an integer number (85536).

2^1128810 is an apocalyptic number.

1128810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128810 is an abundant number, since it is smaller than the sum of its proper divisors (1608342).

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

1128810 is a wasteful number, since it uses less digits than its factorization.

1128810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 1128810 is about 1062.4547049169. The cubic root of 1128810 is about 104.1214680353.

The spelling of 1128810 in words is "one million, one hundred twenty-eight thousand, eight hundred ten".