128083916 has 24 divisors (see below), whose sum is σ = 237758976. Its totient is φ = 60166400.

The previous prime is 128083873. The next prime is 128083931. The reversal of 128083916 is 619380821.

It is a self number, because there is not a number n which added to its sum of digits gives 128083916.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46325 + ... + 49011.

It is an arithmetic number, because the mean of its divisors is an integer number (9906624).

Almost surely, 2^128083916 is an apocalyptic number.

It is an amenable number.

128083916 is a deficient number, since it is larger than the sum of its proper divisors (109675060).

128083916 is a wasteful number, since it uses less digits than its factorization.

128083916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3409 (or 3407 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 128083916 is about 11317.4164896411. The cubic root of 128083916 is about 504.0785287480.

The spelling of 128083916 in words is "one hundred twenty-eight million, eighty-three thousand, nine hundred sixteen".