1128299520 has 352 divisors, whose sum is σ = 3979368000. Its totient is φ = 271581184.

The previous prime is 1128299507. The next prime is 1128299521. The reversal of 1128299520 is 259928211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128299521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7572406 + ... + 7572554.

Almost surely, 2^1128299520 is an apocalyptic number.

1128299520 is a gapful number since it is divisible by the number (10) 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 1128299520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1989684000).

1128299520 is an abundant number, since it is smaller than the sum of its proper divisors (2851068480).

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

1128299520 is a wasteful number, since it uses less digits than its factorization.

1128299520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 205 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1128299520 is about 33590.1699906386. The cubic root of 1128299520 is about 1041.0577010523.

The spelling of 1128299520 in words is "one billion, one hundred twenty-eight million, two hundred ninety-nine thousand, five hundred twenty".