28473200 has 60 divisors (see below), whose sum is σ = 78186960. Its totient is φ = 9761280.

The previous prime is 28473187. The next prime is 28473209. The reversal of 28473200 is 237482.

It is a self number, because there is not a number n which added to its sum of digits gives 28473200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28473209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2285 + ... + 7884.

It is an arithmetic number, because the mean of its divisors is an integer number (1303116).

Almost surely, 2^28473200 is an apocalyptic number.

28473200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28473200 is an abundant number, since it is smaller than the sum of its proper divisors (49713760).

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

28473200 is a wasteful number, since it uses less digits than its factorization.

28473200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10194 (or 10183 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 28473200 is about 5336.0284856811. The cubic root of 28473200 is about 305.3599619973.

It can be divided in two parts, 28 and 473200, that multiplied together give a square (13249600 = 3640²).

The spelling of 28473200 in words is "twenty-eight million, four hundred seventy-three thousand, two hundred".