128330460 has 96 divisors (see below), whose sum is σ = 405323520. Its totient is φ = 33701184.

The previous prime is 128330459. The next prime is 128330473. The reversal of 128330460 is 64033821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34407 + ... + 37953.

It is an arithmetic number, because the mean of its divisors is an integer number (4222120).

Almost surely, 2^128330460 is an apocalyptic number.

128330460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128330460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202661760).

128330460 is an abundant number, since it is smaller than the sum of its proper divisors (276993060).

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

128330460 is a wasteful number, since it uses less digits than its factorization.

128330460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632 (or 3624 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 128330460 is about 11328.3034916972. The cubic root of 128330460 is about 504.4017488336.

The spelling of 128330460 in words is "one hundred twenty-eight million, three hundred thirty thousand, four hundred sixty".