28030280300 has 72 divisors (see below), whose sum is σ = 66386292672. Its totient is φ = 10188072000.

The previous prime is 28030280237. The next prime is 28030280303. The reversal of 28030280300 is 308203082.

It is a super-2 number, since 2×28030280300² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28030280300.

It is not an unprimeable number, because it can be changed into a prime (28030280303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3078755 + ... + 3087845.

Almost surely, 2^28030280300 is an apocalyptic number.

28030280300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28030280300 is an abundant number, since it is smaller than the sum of its proper divisors (38356012372).

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

28030280300 is a wasteful number, since it uses less digits than its factorization.

28030280300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11919 (or 11912 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 28030280300 its reverse (308203082), we get a palindrome (28338483382).

The spelling of 28030280300 in words is "twenty-eight billion, thirty million, two hundred eighty thousand, three hundred".