1128460 has 24 divisors (see below), whose sum is σ = 2509920. Its totient is φ = 424704.

The previous prime is 1128451. The next prime is 1128497. The reversal of 1128460 is 648211.

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, 1320 + ... + 1999.

It is an arithmetic number, because the mean of its divisors is an integer number (104580).

2^1128460 is an apocalyptic number.

1128460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128460 is an abundant number, since it is smaller than the sum of its proper divisors (1381460).

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

1128460 is a wasteful number, since it uses less digits than its factorization.

1128460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3345 (or 3343 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1128460 is about 1062.2899792430. The cubic root of 1128460 is about 104.1107055861.

Subtracting from 1128460 its reverse (648211), we obtain a square (480249 = 693²).

The spelling of 1128460 in words is "one million, one hundred twenty-eight thousand, four hundred sixty".