128607020 has 48 divisors (see below), whose sum is σ = 278601120. Its totient is φ = 49844736.

The previous prime is 128607013. The next prime is 128607113. The reversal of 128607020 is 20706821.

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, 85394 + ... + 86886.

It is an arithmetic number, because the mean of its divisors is an integer number (5804190).

Almost surely, 2^128607020 is an apocalyptic number.

128607020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128607020 is an abundant number, since it is smaller than the sum of its proper divisors (149994100).

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

128607020 is a wasteful number, since it uses less digits than its factorization.

128607020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 128607020 is about 11340.5035161584. The cubic root of 128607020 is about 504.7638277430.

The spelling of 128607020 in words is "one hundred twenty-eight million, six hundred seven thousand, twenty".