28453200 has 120 divisors (see below), whose sum is σ = 92348256. Its totient is φ = 7488000.

The previous prime is 28453199. The next prime is 28453237. The reversal of 28453200 is 235482.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157110 + ... + 157290.

Almost surely, 2^28453200 is an apocalyptic number.

28453200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28453200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46174128).

28453200 is an abundant number, since it is smaller than the sum of its proper divisors (63895056).

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

28453200 is a wasteful number, since it uses less digits than its factorization.

28453200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 28453200 is about 5334.1541035107. The cubic root of 28453200 is about 305.2884487881.

Adding to 28453200 its reverse (235482), we get a palindrome (28688682).

The spelling of 28453200 in words is "twenty-eight million, four hundred fifty-three thousand, two hundred".