128244270 has 192 divisors, whose sum is σ = 398361600. Its totient is φ = 26389440.

The previous prime is 128244199. The next prime is 128244287. The reversal of 128244270 is 72442821.

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 95 ways as a sum of consecutive naturals, for example, 1245039 + ... + 1245141.

It is an arithmetic number, because the mean of its divisors is an integer number (2074800).

Almost surely, 2^128244270 is an apocalyptic number.

128244270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128244270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199180800).

128244270 is an abundant number, since it is smaller than the sum of its proper divisors (270117330).

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

128244270 is a wasteful number, since it uses less digits than its factorization.

128244270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 128244270 is about 11324.4986644001. The cubic root of 128244270 is about 504.2888005302.

The spelling of 128244270 in words is "one hundred twenty-eight million, two hundred forty-four thousand, two hundred seventy".