128234580 has 24 divisors (see below), whose sum is σ = 359056992. Its totient is φ = 34195872.

The previous prime is 128234543. The next prime is 128234597. The reversal of 128234580 is 85432821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1068562 + ... + 1068681.

It is an arithmetic number, because the mean of its divisors is an integer number (14960708).

Almost surely, 2^128234580 is an apocalyptic number.

128234580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128234580 is an abundant number, since it is smaller than the sum of its proper divisors (230822412).

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

128234580 is a wasteful number, since it uses less digits than its factorization.

128234580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137255 (or 2137253 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 128234580 is about 11324.0708228093. The cubic root of 128234580 is about 504.2760990360.

The spelling of 128234580 in words is "one hundred twenty-eight million, two hundred thirty-four thousand, five hundred eighty".