1121828 has 24 divisors (see below), whose sum is σ = 2069760. Its totient is φ = 531360.

The previous prime is 1121819. The next prime is 1121831. The reversal of 1121828 is 8281211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10238 + ... + 10346.

It is an arithmetic number, because the mean of its divisors is an integer number (86240).

2^1121828 is an apocalyptic number.

It is an amenable number.

1121828 is a deficient number, since it is larger than the sum of its proper divisors (947932).

1121828 is a wasteful number, since it uses less digits than its factorization.

1121828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 225 counting only the distinct ones).

The product of its digits is 256, while the sum is 23.

The square root of 1121828 is about 1059.1638211344. The cubic root of 1121828 is about 103.9063506076.

The spelling of 1121828 in words is "one million, one hundred twenty-one thousand, eight hundred twenty-eight".