128924120 has 64 divisors (see below), whose sum is σ = 328860000. Its totient is φ = 45093888.

The previous prime is 128924119. The next prime is 128924123. The reversal of 128924120 is 21429821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128924123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3356 + ... + 16404.

Almost surely, 2^128924120 is an apocalyptic number.

128924120 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 128924120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164430000).

128924120 is an abundant number, since it is smaller than the sum of its proper divisors (199935880).

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

128924120 is a wasteful number, since it uses less digits than its factorization.

128924120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13092 (or 13088 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 128924120 is about 11354.4757694928. The cubic root of 128924120 is about 505.1783443547.

The spelling of 128924120 in words is "one hundred twenty-eight million, nine hundred twenty-four thousand, one hundred twenty".