28352900 has 36 divisors (see below), whose sum is σ = 61805940. Its totient is φ = 11289600.

The previous prime is 28352899. The next prime is 28352903. The reversal of 28352900 is 925382.

It can be written as a sum of positive squares in 6 ways, for example, as 643204 + 27709696 = 802^2 + 5264^2 .

It is not an unprimeable number, because it can be changed into a prime (28352903) 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, 27596 + ... + 28604.

Almost surely, 2^28352900 is an apocalyptic number.

28352900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28352900 is an abundant number, since it is smaller than the sum of its proper divisors (33453040).

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

28352900 is a wasteful number, since it uses less digits than its factorization.

28352900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 28352900 is about 5324.7441253078. The cubic root of 28352900 is about 304.9293036897.

The spelling of 28352900 in words is "twenty-eight million, three hundred fifty-two thousand, nine hundred".