1128906 has 24 divisors (see below), whose sum is σ = 2489760. Its totient is φ = 369576.

The previous prime is 1128901. The next prime is 1128917. The reversal of 1128906 is 6098211.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1128906.

It is not an unprimeable number, because it can be changed into a prime (1128901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 531 + ... + 1593.

It is an arithmetic number, because the mean of its divisors is an integer number (103740).

2^1128906 is an apocalyptic number.

It is a pronic number, being equal to 1062×1063.

1128906 is an abundant number, since it is smaller than the sum of its proper divisors (1360854).

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

1128906 is a wasteful number, since it uses less digits than its factorization.

1128906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1127 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1128906 is about 1062.4998823529. The cubic root of 1128906 is about 104.1244196326.

It can be divided in two parts, 112890 and 6, that added together give a square (112896 = 336²).

The spelling of 1128906 in words is "one million, one hundred twenty-eight thousand, nine hundred six".