28854222 has 8 divisors (see below), whose sum is σ = 57708456. Its totient is φ = 9618072.

The previous prime is 28854209. The next prime is 28854223. The reversal of 28854222 is 22245882.

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

28854222 is an admirable number.

It is a super-2 number, since 2×28854222² = 1665132254450568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28854223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2404513 + ... + 2404524.

It is an arithmetic number, because the mean of its divisors is an integer number (7213557).

Almost surely, 2^28854222 is an apocalyptic number.

28854222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28854222 is a wasteful number, since it uses less digits than its factorization.

28854222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809042.

The product of its digits is 20480, while the sum is 33.

The square root of 28854222 is about 5371.6126070297. The cubic root of 28854222 is about 306.7160173151.

The spelling of 28854222 in words is "twenty-eight million, eight hundred fifty-four thousand, two hundred twenty-two".