128435300 has 36 divisors (see below), whose sum is σ = 318521280. Its totient is φ = 44034720.

The previous prime is 128435299. The next prime is 128435303. The reversal of 128435300 is 3534821.

It is a self number, because there is not a number n which added to its sum of digits gives 128435300.

It is not an unprimeable number, because it can be changed into a prime (128435303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91040 + ... + 92439.

Almost surely, 2^128435300 is an apocalyptic number.

128435300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128435300 is an abundant number, since it is smaller than the sum of its proper divisors (190085980).

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

128435300 is a wasteful number, since it uses less digits than its factorization.

128435300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183500 (or 183493 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 128435300 is about 11332.9298947801. The cubic root of 128435300 is about 504.5390690128.

The spelling of 128435300 in words is "one hundred twenty-eight million, four hundred thirty-five thousand, three hundred".