128696480 has 96 divisors (see below), whose sum is σ = 336063168. Its totient is φ = 46182400.

The previous prime is 128696479. The next prime is 128696483. The reversal of 128696480 is 84696821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (128696483) 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, 145640 + ... + 146520.

It is an arithmetic number, because the mean of its divisors is an integer number (3500658).

Almost surely, 2^128696480 is an apocalyptic number.

128696480 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 128696480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168031584).

128696480 is an abundant number, since it is smaller than the sum of its proper divisors (207366688).

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

128696480 is a wasteful number, since it uses less digits than its factorization.

128696480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 128696480 is about 11344.4470997929. The cubic root of 128696480 is about 504.8808397738.

The spelling of 128696480 in words is "one hundred twenty-eight million, six hundred ninety-six thousand, four hundred eighty".