128056368 has 80 divisors (see below), whose sum is σ = 362583936. Its totient is φ = 38622720.

The previous prime is 128056351. The next prime is 128056399. The reversal of 128056368 is 863650821.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148996 + ... + 149852.

Almost surely, 2^128056368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128056368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181291968).

128056368 is an abundant number, since it is smaller than the sum of its proper divisors (234527568).

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

128056368 is a wasteful number, since it uses less digits than its factorization.

128056368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 128056368 is about 11316.1993619766. The cubic root of 128056368 is about 504.0423874655.

The spelling of 128056368 in words is "one hundred twenty-eight million, fifty-six thousand, three hundred sixty-eight".