128358672 has 40 divisors (see below), whose sum is σ = 357102144. Its totient is φ = 39494784.

The previous prime is 128358589. The next prime is 128358673. The reversal of 128358672 is 276853821.

It is not an unprimeable number, because it can be changed into a prime (128358673) 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, 102228 + ... + 103475.

Almost surely, 2^128358672 is an apocalyptic number.

128358672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128358672 is an abundant number, since it is smaller than the sum of its proper divisors (228743472).

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

128358672 is a wasteful number, since it uses less digits than its factorization.

128358672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205727 (or 205721 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 128358672 is about 11329.5486229593. The cubic root of 128358672 is about 504.4387084650.

The spelling of 128358672 in words is "one hundred twenty-eight million, three hundred fifty-eight thousand, six hundred seventy-two".