128304822 has 16 divisors (see below), whose sum is σ = 260959680. Its totient is φ = 42043272.

The previous prime is 128304811. The next prime is 128304829. The reversal of 128304822 is 228403821.

It is a self number, because there is not a number n which added to its sum of digits gives 128304822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128304829) 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, 180868 + ... + 181575.

It is an arithmetic number, because the mean of its divisors is an integer number (16309980).

Almost surely, 2^128304822 is an apocalyptic number.

128304822 is an abundant number, since it is smaller than the sum of its proper divisors (132654858).

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

128304822 is a wasteful number, since it uses less digits than its factorization.

128304822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362507.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 128304822 is about 11327.1718447281. The cubic root of 128304822 is about 504.3681566183.

The spelling of 128304822 in words is "one hundred twenty-eight million, three hundred four thousand, eight hundred twenty-two".