128395022 has 16 divisors (see below), whose sum is σ = 220948992. Its totient is φ = 54815640.

The previous prime is 128395021. The next prime is 128395031. The reversal of 128395022 is 220593821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 128395022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128395021) 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, 13754 + ... + 21117.

It is an arithmetic number, because the mean of its divisors is an integer number (13809312).

Almost surely, 2^128395022 is an apocalyptic number.

128395022 is a deficient number, since it is larger than the sum of its proper divisors (92553970).

128395022 is a wasteful number, since it uses less digits than its factorization.

128395022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35143.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 128395022 is about 11331.1527215902. The cubic root of 128395022 is about 504.4863214444.

The spelling of 128395022 in words is "one hundred twenty-eight million, three hundred ninety-five thousand, twenty-two".