1111397828 has 12 divisors (see below), whose sum is σ = 1960261632. Its totient is φ = 551323080.

The previous prime is 1111397813. The next prime is 1111397849. The reversal of 1111397828 is 8287931111.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093388 + ... + 1094403.

It is an arithmetic number, because the mean of its divisors is an integer number (163355136).

Almost surely, 2^1111397828 is an apocalyptic number.

It is an amenable number.

1111397828 is a deficient number, since it is larger than the sum of its proper divisors (848863804).

1111397828 is a wasteful number, since it uses less digits than its factorization.

1111397828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187922 (or 2187920 counting only the distinct ones).

The product of its digits is 24192, while the sum is 41.

The square root of 1111397828 is about 33337.6338092553. The cubic root of 1111397828 is about 1035.8332505931.

The spelling of 1111397828 in words is "one billion, one hundred eleven million, three hundred ninety-seven thousand, eight hundred twenty-eight".