128458608 has 20 divisors (see below), whose sum is σ = 331851528. Its totient is φ = 42819520.

The previous prime is 128458597. The next prime is 128458609. The reversal of 128458608 is 806854821.

It is a super-2 number, since 2×128458608² = 33003227938595328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128458608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128458609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1338063 + ... + 1338158.

Almost surely, 2^128458608 is an apocalyptic number.

It is an amenable number.

128458608 is an abundant number, since it is smaller than the sum of its proper divisors (203392920).

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

128458608 is a wasteful number, since it uses less digits than its factorization.

128458608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2676232 (or 2676226 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The square root of 128458608 is about 11333.9581788535. The cubic root of 128458608 is about 504.5695878430.

The spelling of 128458608 in words is "one hundred twenty-eight million, four hundred fifty-eight thousand, six hundred eight".