128406316 has 24 divisors (see below), whose sum is σ = 233039520. Its totient is φ = 61834752.

The previous prime is 128406293. The next prime is 128406319. The reversal of 128406316 is 613604821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128406319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55356 + ... + 57628.

It is an arithmetic number, because the mean of its divisors is an integer number (9709980).

Almost surely, 2^128406316 is an apocalyptic number.

It is an amenable number.

128406316 is a deficient number, since it is larger than the sum of its proper divisors (104633204).

128406316 is a wasteful number, since it uses less digits than its factorization.

128406316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2793 (or 2791 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 128406316 is about 11331.6510712252. The cubic root of 128406316 is about 504.5011130393.

The spelling of 128406316 in words is "one hundred twenty-eight million, four hundred six thousand, three hundred sixteen".