228636822 has 16 divisors (see below), whose sum is σ = 457479792. Its totient is φ = 76177920.

The previous prime is 228636809. The next prime is 228636833.

228636822 is nontrivially palindromic in base 10.

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 7 ways as a sum of consecutive naturals, for example, 8422 + ... + 22982.

It is an arithmetic number, because the mean of its divisors is an integer number (28592487).

Almost surely, 2^228636822 is an apocalyptic number.

228636822 is an abundant number, since it is smaller than the sum of its proper divisors (228842970).

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

228636822 is a wasteful number, since it uses less digits than its factorization.

228636822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17183.

The product of its digits is 110592, while the sum is 39.

The square root of 228636822 is about 15120.7414500745. The cubic root of 228636822 is about 611.4797203643.

The spelling of 228636822 in words is "two hundred twenty-eight million, six hundred thirty-six thousand, eight hundred twenty-two".