128244800 has 42 divisors (see below), whose sum is σ = 315566298. Its totient is φ = 51297280.

The previous prime is 128244797. The next prime is 128244827. The reversal of 128244800 is 8442821.

It can be written as a sum of positive squares in 3 ways, for example, as 42719296 + 85525504 = 6536^2 + 9248^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38477 + ... + 41676.

Almost surely, 2^128244800 is an apocalyptic number.

128244800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128244800 is an abundant number, since it is smaller than the sum of its proper divisors (187321498).

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

128244800 is an equidigital number, since it uses as much as digits as its factorization.

128244800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80175 (or 80160 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 128244800 is about 11324.5220649703. The cubic root of 128244800 is about 504.2894952271.

The spelling of 128244800 in words is "one hundred twenty-eight million, two hundred forty-four thousand, eight hundred".