28822000 has 40 divisors (see below), whose sum is σ = 69696432. Its totient is φ = 11528000.

The previous prime is 28821959. The next prime is 28822009. The reversal of 28822000 is 22882.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28822009) 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, 5206 + ... + 9205.

Almost surely, 2^28822000 is an apocalyptic number.

28822000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28822000 is an abundant number, since it is smaller than the sum of its proper divisors (40874432).

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

28822000 is a wasteful number, since it uses less digits than its factorization.

28822000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14434 (or 14418 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 28822000 is about 5368.6124836870. The cubic root of 28822000 is about 306.6018031268.

Adding to 28822000 its reverse (22882), we get a palindrome (28844882).

The spelling of 28822000 in words is "twenty-eight million, eight hundred twenty-two thousand".