11993028 has 48 divisors (see below), whose sum is σ = 30750720. Its totient is φ = 3621024.

The previous prime is 11992993. The next prime is 11993039. The reversal of 11993028 is 82039911.

It is a self number, because there is not a number n which added to its sum of digits gives 11993028.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4101 + ... + 6387.

It is an arithmetic number, because the mean of its divisors is an integer number (640640).

Almost surely, 2^11993028 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 11993028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15375360).

11993028 is an abundant number, since it is smaller than the sum of its proper divisors (18757692).

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

11993028 is a wasteful number, since it uses less digits than its factorization.

11993028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336 (or 2334 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 11993028 is about 3463.0951474079. The cubic root of 11993028 is about 228.8985013227.

The spelling of 11993028 in words is "eleven million, nine hundred ninety-three thousand, twenty-eight".