128242822 has 8 divisors (see below), whose sum is σ = 193879296. Its totient is φ = 63616392.

The previous prime is 128242819. The next prime is 128242853. The reversal of 128242822 is 228242821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252193 + ... + 252700.

It is an arithmetic number, because the mean of its divisors is an integer number (24234912).

Almost surely, 2^128242822 is an apocalyptic number.

128242822 is a deficient number, since it is larger than the sum of its proper divisors (65636474).

128242822 is a wasteful number, since it uses less digits than its factorization.

128242822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505022.

The product of its digits is 8192, while the sum is 31.

The square root of 128242822 is about 11324.4347320297. The cubic root of 128242822 is about 504.2869025560.

Subtracting 128242822 from its reverse (228242821), we obtain a palindrome (99999999).

The spelling of 128242822 in words is "one hundred twenty-eight million, two hundred forty-two thousand, eight hundred twenty-two".