128332078 has 16 divisors (see below), whose sum is σ = 224488800. Its totient is φ = 54999168.

The previous prime is 128332049. The next prime is 128332079. The reversal of 128332078 is 870233821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128332079) 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, 92851 + ... + 94222.

It is an arithmetic number, because the mean of its divisors is an integer number (14030550).

Almost surely, 2^128332078 is an apocalyptic number.

128332078 is a deficient number, since it is larger than the sum of its proper divisors (96156722).

128332078 is an equidigital number, since it uses as much as digits as its factorization.

128332078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187096 (or 187082 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 128332078 is about 11328.3749055193. The cubic root of 128332078 is about 504.4038686696.

Adding to 128332078 its reverse (870233821), we get a palindrome (998565899).

The spelling of 128332078 in words is "one hundred twenty-eight million, three hundred thirty-two thousand, seventy-eight".