1111001928 has 64 divisors (see below), whose sum is σ = 2851873920. Its totient is φ = 360460800.

The previous prime is 1111001921. The next prime is 1111001929. The reversal of 1111001928 is 8291001111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1111001898 and 1111001907.

It is not an unprimeable number, because it can be changed into a prime (1111001921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531301 + ... + 533387.

It is an arithmetic number, because the mean of its divisors is an integer number (44560530).

Almost surely, 2^1111001928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111001928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425936960).

1111001928 is an abundant number, since it is smaller than the sum of its proper divisors (1740871992).

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

1111001928 is a wasteful number, since it uses less digits than its factorization.

1111001928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2678 (or 2674 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 24.

The square root of 1111001928 is about 33331.6955464315. The cubic root of 1111001928 is about 1035.7102418088.

The spelling of 1111001928 in words is "one billion, one hundred eleven million, one thousand, nine hundred twenty-eight".