128673600 has 168 divisors, whose sum is σ = 460723488. Its totient is φ = 31180800.

The previous prime is 128673563. The next prime is 128673617. The reversal of 128673600 is 6376821.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51582 + ... + 54018.

Almost surely, 2^128673600 is an apocalyptic number.

128673600 is a gapful number since it is divisible by the number (10) 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 128673600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230361744).

128673600 is an abundant number, since it is smaller than the sum of its proper divisors (332049888).

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

128673600 is a wasteful number, since it uses less digits than its factorization.

128673600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2473 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 128673600 is about 11343.4386320904. The cubic root of 128673600 is about 504.8509183177.

The spelling of 128673600 in words is "one hundred twenty-eight million, six hundred seventy-three thousand, six hundred".