28955300 has 54 divisors (see below), whose sum is σ = 69093234. Its totient is φ = 10524800.

The previous prime is 28955287. The next prime is 28955309. The reversal of 28955300 is 355982.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 139876 + 28815424 = 374^2 + 5368^2 .

It is not an unprimeable number, because it can be changed into a prime (28955309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10904 + ... + 13296.

Almost surely, 2^28955300 is an apocalyptic number.

28955300 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 28955300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34546617).

28955300 is an abundant number, since it is smaller than the sum of its proper divisors (40137934).

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

28955300 is a wasteful number, since it uses less digits than its factorization.

28955300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429 (or 2411 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 28955300 is about 5381.0129157994. The cubic root of 28955300 is about 307.0737478753.

The spelling of 28955300 in words is "twenty-eight million, nine hundred fifty-five thousand, three hundred".