1224788928 has 112 divisors (see below), whose sum is σ = 3545921280. Its totient is φ = 370022400.

The previous prime is 1224788881. The next prime is 1224788969. The reversal of 1224788928 is 8298874221.

It is a congruent number.

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, 926508 + ... + 927828.

Almost surely, 2^1224788928 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 1224788928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1772960640).

1224788928 is an abundant number, since it is smaller than the sum of its proper divisors (2321132352).

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

1224788928 is a wasteful number, since it uses less digits than its factorization.

1224788928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1786 (or 1776 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 51.

The square root of 1224788928 is about 34996.9845558157. The cubic root of 1224788928 is about 1069.9260227773.

The spelling of 1224788928 in words is "one billion, two hundred twenty-four million, seven hundred eighty-eight thousand, nine hundred twenty-eight".