128488570 has 32 divisors (see below), whose sum is σ = 268661376. Its totient is φ = 43329600.

The previous prime is 128488561. The next prime is 128488579. The reversal of 128488570 is 75884821.

It is an interprime number because it is at equal distance from previous prime (128488561) and next prime (128488579).

It is not an unprimeable number, because it can be changed into a prime (128488579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10776 + ... + 19315.

It is an arithmetic number, because the mean of its divisors is an integer number (8395668).

Almost surely, 2^128488570 is an apocalyptic number.

128488570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128488570 is an abundant number, since it is smaller than the sum of its proper divisors (140172806).

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

128488570 is a wasteful number, since it uses less digits than its factorization.

128488570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30166.

The product of its (nonzero) digits is 143360, while the sum is 43.

The square root of 128488570 is about 11335.2798818556. The cubic root of 128488570 is about 504.6088138085.

The spelling of 128488570 in words is "one hundred twenty-eight million, four hundred eighty-eight thousand, five hundred seventy".