28034200 has 24 divisors (see below), whose sum is σ = 65179980. Its totient is φ = 11213600.

The previous prime is 28034189. The next prime is 28034219. The reversal of 28034200 is 243082.

It is a happy number.

It is a congruent number.

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, 69886 + ... + 70285.

Almost surely, 2^28034200 is an apocalyptic number.

28034200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28034200 is an abundant number, since it is smaller than the sum of its proper divisors (37145780).

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

28034200 is a wasteful number, since it uses less digits than its factorization.

28034200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140187 (or 140178 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 28034200 is about 5294.7332321846. The cubic root of 28034200 is about 303.7824794366.

Adding to 28034200 its reverse (243082), we get a palindrome (28277282).

The spelling of 28034200 in words is "twenty-eight million, thirty-four thousand, two hundred".