1128199248 has 120 divisors (see below), whose sum is σ = 3471358176. Its totient is φ = 339206400.

The previous prime is 1128199229. The next prime is 1128199277. The reversal of 1128199248 is 8429918211.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 204786 + ... + 210222.

Almost surely, 2^1128199248 is an apocalyptic number.

1128199248 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1128199248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1735679088).

1128199248 is an abundant number, since it is smaller than the sum of its proper divisors (2343158928).

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

1128199248 is a wasteful number, since it uses less digits than its factorization.

1128199248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5593 (or 5584 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 1128199248 is about 33588.6773779498. The cubic root of 1128199248 is about 1041.0268605327.

The spelling of 1128199248 in words is "one billion, one hundred twenty-eight million, one hundred ninety-nine thousand, two hundred forty-eight".