28893400224 has 48 divisors (see below), whose sum is σ = 81679423392. Its totient is φ = 8890276608.

The previous prime is 28893400199. The next prime is 28893400253. The reversal of 28893400224 is 42200439882.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11574634 + ... + 11577129.

It is an arithmetic number, because the mean of its divisors is an integer number (1701654654).

Almost surely, 2^28893400224 is an apocalyptic number.

28893400224 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28893400224 is an abundant number, since it is smaller than the sum of its proper divisors (52786023168).

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

28893400224 is a wasteful number, since it uses less digits than its factorization.

28893400224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23151789 (or 23151781 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The spelling of 28893400224 in words is "twenty-eight billion, eight hundred ninety-three million, four hundred thousand, two hundred twenty-four".