128940060 has 48 divisors (see below), whose sum is σ = 362880000. Its totient is φ = 34208064.

The previous prime is 128940059. The next prime is 128940073. The reversal of 128940060 is 60049821.

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

It is a congruent number.

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, 6541 + ... + 17339.

It is an arithmetic number, because the mean of its divisors is an integer number (7560000).

Almost surely, 2^128940060 is an apocalyptic number.

128940060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128940060 is an abundant number, since it is smaller than the sum of its proper divisors (233939940).

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

128940060 is a wasteful number, since it uses less digits than its factorization.

128940060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010 (or 11008 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 128940060 is about 11355.1776736430. The cubic root of 128940060 is about 505.1991633475.

Adding to 128940060 its reverse (60049821), we get a palindrome (188989881).

The spelling of 128940060 in words is "one hundred twenty-eight million, nine hundred forty thousand, sixty".