128762480 has 80 divisors (see below), whose sum is σ = 373261824. Its totient is φ = 40131840.

The previous prime is 128762461. The next prime is 128762497. The reversal of 128762480 is 84267821.

It is a tau number, because it is divible by the number of its divisors (80).

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 15 ways as a sum of consecutive naturals, for example, 4292 + ... + 16611.

Almost surely, 2^128762480 is an apocalyptic number.

128762480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128762480 is an abundant number, since it is smaller than the sum of its proper divisors (244499344).

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

128762480 is a wasteful number, since it uses less digits than its factorization.

128762480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20934 (or 20928 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 128762480 is about 11347.3556390905. The cubic root of 128762480 is about 504.9671318019.

The spelling of 128762480 in words is "one hundred twenty-eight million, seven hundred sixty-two thousand, four hundred eighty".