128070822 has 32 divisors (see below), whose sum is σ = 282579840. Its totient is φ = 38371520.

The previous prime is 128070821. The next prime is 128070841. The reversal of 128070822 is 228070821.

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 128070822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128070821) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5028 + ... + 16775.

It is an arithmetic number, because the mean of its divisors is an integer number (8830620).

Almost surely, 2^128070822 is an apocalyptic number.

128070822 is an abundant number, since it is smaller than the sum of its proper divisors (154509018).

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

128070822 is a wasteful number, since it uses less digits than its factorization.

128070822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21908.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 128070822 is about 11316.8379859394. The cubic root of 128070822 is about 504.0613508712.

Subtracting 128070822 from its reverse (228070821), we obtain a palindrome (99999999).

The spelling of 128070822 in words is "one hundred twenty-eight million, seventy thousand, eight hundred twenty-two".