28444200 has 48 divisors (see below), whose sum is σ = 88178880. Its totient is φ = 7584960.

The previous prime is 28444189. The next prime is 28444217. The reversal of 28444200 is 244482.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23104 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (1837060).

Almost surely, 2^28444200 is an apocalyptic number.

28444200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28444200 is an abundant number, since it is smaller than the sum of its proper divisors (59734680).

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

28444200 is a wasteful number, since it uses less digits than its factorization.

28444200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47426 (or 47417 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 28444200 is about 5333.3104166174. The cubic root of 28444200 is about 305.2562569106.

Adding to 28444200 its reverse (244482), we get a palindrome (28688682).

The spelling of 28444200 in words is "twenty-eight million, four hundred forty-four thousand, two hundred".