1115223928 has 48 divisors (see below), whose sum is σ = 2619562680. Its totient is φ = 441185472.

The previous prime is 1115223917. The next prime is 1115223937. The reversal of 1115223928 is 8293225111.

It is a junction number, because it is equal to n+sod(n) for n = 1115223893 and 1115223902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104326 + ... + 114517.

Almost surely, 2^1115223928 is an apocalyptic number.

It is an amenable number.

1115223928 is an abundant number, since it is smaller than the sum of its proper divisors (1504338752).

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

1115223928 is a wasteful number, since it uses less digits than its factorization.

1115223928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218876 (or 218865 counting only the distinct ones).

The product of its digits is 8640, while the sum is 34.

The square root of 1115223928 is about 33394.9686030695. The cubic root of 1115223928 is about 1037.0205429290.

The spelling of 1115223928 in words is "one billion, one hundred fifteen million, two hundred twenty-three thousand, nine hundred twenty-eight".