128910234 has 8 divisors (see below), whose sum is σ = 257820480. Its totient is φ = 42970076.

The previous prime is 128910233. The next prime is 128910241. The reversal of 128910234 is 432019821.

It is a sphenic number, since it is the product of 3 distinct primes.

128910234 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (128910233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10742514 + ... + 10742525.

It is an arithmetic number, because the mean of its divisors is an integer number (32227560).

Almost surely, 2^128910234 is an apocalyptic number.

128910234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128910234 is a wasteful number, since it uses less digits than its factorization.

128910234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21485044.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 128910234 is about 11353.8642760956. The cubic root of 128910234 is about 505.1602066616.

The spelling of 128910234 in words is "one hundred twenty-eight million, nine hundred ten thousand, two hundred thirty-four".