28400480180 has 24 divisors (see below), whose sum is σ = 60359578272. Its totient is φ = 11223321632.

The previous prime is 28400480161. The next prime is 28400480183. The reversal of 28400480180 is 8108400482.

It is a self number, because there is not a number n which added to its sum of digits gives 28400480180.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28400480183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8552702 + ... + 8556021.

It is an arithmetic number, because the mean of its divisors is an integer number (2514982428).

Almost surely, 2^28400480180 is an apocalyptic number.

28400480180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28400480180 is an abundant number, since it is smaller than the sum of its proper divisors (31959098092).

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

28400480180 is a wasteful number, since it uses less digits than its factorization.

28400480180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17108815 (or 17108813 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The spelling of 28400480180 in words is "twenty-eight billion, four hundred million, four hundred eighty thousand, one hundred eighty".