28301200 has 30 divisors (see below), whose sum is σ = 67994594. Its totient is φ = 11320320.

The previous prime is 28301177. The next prime is 28301213. The reversal of 28301200 is 210382.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 295936 + 28005264 = 544^2 + 5292^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34977 + ... + 35776.

Almost surely, 2^28301200 is an apocalyptic number.

28301200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28301200 is an abundant number, since it is smaller than the sum of its proper divisors (39693394).

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

28301200 is a wasteful number, since it uses less digits than its factorization.

28301200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70771 (or 70760 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 28301200 is about 5319.8872168496. The cubic root of 28301200 is about 304.7438501519.

Adding to 28301200 its reverse (210382), we get a palindrome (28511582).

The spelling of 28301200 in words is "twenty-eight million, three hundred one thousand, two hundred".