128460486 has 64 divisors (see below), whose sum is σ = 323606016. Its totient is φ = 33024000.

The previous prime is 128460473. The next prime is 128460487. The reversal of 128460486 is 684064821.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128460487) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 45286 + ... + 48038.

It is an arithmetic number, because the mean of its divisors is an integer number (5056344).

Almost surely, 2^128460486 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128460486, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161803008).

128460486 is an abundant number, since it is smaller than the sum of its proper divisors (195145530).

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

128460486 is a wasteful number, since it uses less digits than its factorization.

128460486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877.

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 128460486 is about 11334.0410269242. The cubic root of 128460486 is about 504.5720466819.

The spelling of 128460486 in words is "one hundred twenty-eight million, four hundred sixty thousand, four hundred eighty-six".