128730852 has 108 divisors (see below), whose sum is σ = 354324880. Its totient is φ = 39289536.

The previous prime is 128730829. The next prime is 128730907. The reversal of 128730852 is 258037821.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1921323 + ... + 1921389.

Almost surely, 2^128730852 is an apocalyptic number.

128730852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128730852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177162440).

128730852 is an abundant number, since it is smaller than the sum of its proper divisors (225594028).

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

128730852 is a wasteful number, since it uses less digits than its factorization.

128730852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 128730852 is about 11345.9619248436. The cubic root of 128730852 is about 504.9257832966.

The spelling of 128730852 in words is "one hundred twenty-eight million, seven hundred thirty thousand, eight hundred fifty-two".