128570328 has 48 divisors (see below), whose sum is σ = 361113480. Its totient is φ = 42856128.

The previous prime is 128570327. The next prime is 128570329. The reversal of 128570328 is 823075821.

It is an interprime number because it is at equal distance from previous prime (128570327) and next prime (128570329).

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

It is a junction number, because it is equal to n+sod(n) for n = 128570292 and 128570301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128570327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31125 + ... + 35012.

Almost surely, 2^128570328 is an apocalyptic number.

128570328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128570328 is an abundant number, since it is smaller than the sum of its proper divisors (232543152).

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

128570328 is an equidigital number, since it uses as much as digits as its factorization.

128570328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66158 (or 66142 counting only the distinct ones).

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

The square root of 128570328 is about 11338.8856595346. The cubic root of 128570328 is about 504.7158195913.

The spelling of 128570328 in words is "one hundred twenty-eight million, five hundred seventy thousand, three hundred twenty-eight".