28003446120 has 128 divisors (see below), whose sum is σ = 92006409600. Its totient is φ = 6776300544.

The previous prime is 28003446113. The next prime is 28003446131. The reversal of 28003446120 is 2164430082.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60087 + ... + 244166.

It is an arithmetic number, because the mean of its divisors is an integer number (718800075).

Almost surely, 2^28003446120 is an apocalyptic number.

28003446120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28003446120 is an abundant number, since it is smaller than the sum of its proper divisors (64002963480).

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

28003446120 is a wasteful number, since it uses less digits than its factorization.

28003446120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304339 (or 304335 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 28003446120 in words is "twenty-eight billion, three million, four hundred forty-six thousand, one hundred twenty".