28922800 has 30 divisors (see below), whose sum is σ = 69487988. Its totient is φ = 11568960.

The previous prime is 28922779. The next prime is 28922821. The reversal of 28922800 is 822982.

It is an interprime number because it is at equal distance from previous prime (28922779) and next prime (28922821).

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 5 ways as a sum of consecutive naturals, for example, 35754 + ... + 36553.

Almost surely, 2^28922800 is an apocalyptic number.

28922800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28922800 is an abundant number, since it is smaller than the sum of its proper divisors (40565188).

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

28922800 is a wasteful number, since it uses less digits than its factorization.

28922800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72325 (or 72314 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 28922800 is about 5377.9921903997. The cubic root of 28922800 is about 306.9588163198.

The spelling of 28922800 in words is "twenty-eight million, nine hundred twenty-two thousand, eight hundred".