128423608 has 8 divisors (see below), whose sum is σ = 240794280. Its totient is φ = 64211800.

The previous prime is 128423579. The next prime is 128423681. The reversal of 128423608 is 806324821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8026468 + ... + 8026483.

It is an arithmetic number, because the mean of its divisors is an integer number (30099285).

Almost surely, 2^128423608 is an apocalyptic number.

It is an amenable number.

128423608 is a deficient number, since it is larger than the sum of its proper divisors (112370672).

128423608 is a wasteful number, since it uses less digits than its factorization.

128423608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16052957 (or 16052953 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 128423608 is about 11332.4140411476. The cubic root of 128423608 is about 504.5237584510.

The spelling of 128423608 in words is "one hundred twenty-eight million, four hundred twenty-three thousand, six hundred eight".