128340480 has 160 divisors (see below), whose sum is σ = 434865024. Its totient is φ = 32178176.

The previous prime is 128340479. The next prime is 128340521. The reversal of 128340480 is 84043821.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130069 + ... + 131051.

Almost surely, 2^128340480 is an apocalyptic number.

128340480 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 128340480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217432512).

128340480 is an abundant number, since it is smaller than the sum of its proper divisors (306524544).

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

128340480 is an equidigital number, since it uses as much as digits as its factorization.

128340480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1026 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 128340480 is about 11328.7457381654. The cubic root of 128340480 is about 504.4148763327.

The spelling of 128340480 in words is "one hundred twenty-eight million, three hundred forty thousand, four hundred eighty".