28903200 has 72 divisors (see below), whose sum is σ = 94087728. Its totient is φ = 7706880.

The previous prime is 28903163. The next prime is 28903201. The reversal of 28903200 is 230982.

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

It is not an unprimeable number, because it can be changed into a prime (28903201) 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, 3622 + ... + 8421.

It is an arithmetic number, because the mean of its divisors is an integer number (1306774).

Almost surely, 2^28903200 is an apocalyptic number.

28903200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28903200 is an abundant number, since it is smaller than the sum of its proper divisors (65184528).

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

28903200 is a wasteful number, since it uses less digits than its factorization.

28903200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12066 (or 12053 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 28903200 is about 5376.1696401806. The cubic root of 28903200 is about 306.8894621269.

The spelling of 28903200 in words is "twenty-eight million, nine hundred three thousand, two hundred".