128924 has 12 divisors (see below), whose sum is σ = 228144. Its totient is φ = 63744.

The previous prime is 128923. The next prime is 128939. The reversal of 128924 is 429821.

It is a junction number, because it is equal to n+sod(n) for n = 128893 and 128902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128923) 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, 572 + ... + 764.

It is an arithmetic number, because the mean of its divisors is an integer number (19012).

2¹²⁸⁹²⁴ is an apocalyptic number.

It is an amenable number.

128924 is a deficient number, since it is larger than the sum of its proper divisors (99220).

128924 is a wasteful number, since it uses less digits than its factorization.

128924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 128924 is about 359.0598835849. The cubic root of 128924 is about 50.5178187618.

The spelling of 128924 in words is "one hundred twenty-eight thousand, nine hundred twenty-four".