128863060 has 24 divisors (see below), whose sum is σ = 286531560. Its totient is φ = 48513024.

The previous prime is 128863057. The next prime is 128863069. The reversal of 128863060 is 60368821.

It can be written as a sum of positive squares in 4 ways, for example, as 68459076 + 60403984 = 8274^2 + 7772^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128863069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189165 + ... + 189844.

It is an arithmetic number, because the mean of its divisors is an integer number (11938815).

Almost surely, 2^128863060 is an apocalyptic number.

128863060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128863060 is an abundant number, since it is smaller than the sum of its proper divisors (157668500).

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

128863060 is a wasteful number, since it uses less digits than its factorization.

128863060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379035 (or 379033 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 128863060 is about 11351.7866435200. The cubic root of 128863060 is about 505.0985789322.

The spelling of 128863060 in words is "one hundred twenty-eight million, eight hundred sixty-three thousand, sixty".