28887441400 has 48 divisors (see below), whose sum is σ = 67183925400. Its totient is φ = 11551428480.

The previous prime is 28887441361. The next prime is 28887441449. The reversal of 28887441400 is 414478882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687394 + ... + 728206.

Almost surely, 2^28887441400 is an apocalyptic number.

28887441400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28887441400 is an abundant number, since it is smaller than the sum of its proper divisors (38296484000).

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

28887441400 is a wasteful number, since it uses less digits than its factorization.

28887441400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44368 (or 44359 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 46.

The spelling of 28887441400 in words is "twenty-eight billion, eight hundred eighty-seven million, four hundred forty-one thousand, four hundred".