128298090 has 32 divisors (see below), whose sum is σ = 309047040. Its totient is φ = 34087104.

The previous prime is 128298077. The next prime is 128298091. The reversal of 128298090 is 90892821.

It is not an unprimeable number, because it can be changed into a prime (128298091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 591 + ... + 16029.

It is an arithmetic number, because the mean of its divisors is an integer number (9657720).

Almost surely, 2^128298090 is an apocalyptic number.

128298090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128298090 is an abundant number, since it is smaller than the sum of its proper divisors (180748950).

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

128298090 is a wasteful number, since it uses less digits than its factorization.

128298090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15726.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 128298090 is about 11326.8746792749. The cubic root of 128298090 is about 504.3593352668.

The spelling of 128298090 in words is "one hundred twenty-eight million, two hundred ninety-eight thousand, ninety".