28484900 has 36 divisors (see below), whose sum is σ = 62048112. Its totient is φ = 11350560.

The previous prime is 28484899. The next prime is 28484909. The reversal of 28484900 is 948482.

It is a super-2 number, since 2×28484900² = 1622779056020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28484909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43979 + ... + 44621.

Almost surely, 2^28484900 is an apocalyptic number.

28484900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28484900 is an abundant number, since it is smaller than the sum of its proper divisors (33563212).

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

28484900 is a wasteful number, since it uses less digits than its factorization.

28484900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100 (or 1093 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28484900 is about 5337.1246940651. The cubic root of 28484900 is about 305.4017817004.

It can be divided in two parts, 284 and 84900, that added together give a cube (85184 = 44³).

The spelling of 28484900 in words is "twenty-eight million, four hundred eighty-four thousand, nine hundred".