128278302 has 16 divisors (see below), whose sum is σ = 257053440. Its totient is φ = 42676632.

The previous prime is 128278273. The next prime is 128278307. The reversal of 128278302 is 203872821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128278307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17302 + ... + 23577.

It is an arithmetic number, because the mean of its divisors is an integer number (16065840).

Almost surely, 2^128278302 is an apocalyptic number.

128278302 is an abundant number, since it is smaller than the sum of its proper divisors (128775138).

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

128278302 is a wasteful number, since it uses less digits than its factorization.

128278302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41407.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 128278302 is about 11326.0011478015. The cubic root of 128278302 is about 504.3334040528. Note that the first 3 decimals are identical.

The spelling of 128278302 in words is "one hundred twenty-eight million, two hundred seventy-eight thousand, three hundred two".