28070285484 has 24 divisors (see below), whose sum is σ = 66733133040. Its totient is φ = 9180218944.

The previous prime is 28070285413. The next prime is 28070285501. The reversal of 28070285484 is 48458207082.

It is a super-2 number, since 2×28070285484² (a number of 22 digits) contains 22 as substring.

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, 22067199 + ... + 22068470.

It is an arithmetic number, because the mean of its divisors is an integer number (2780547210).

Almost surely, 2^28070285484 is an apocalyptic number.

It is an amenable number.

28070285484 is an abundant number, since it is smaller than the sum of its proper divisors (38662847556).

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

28070285484 is a wasteful number, since it uses less digits than its factorization.

28070285484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44135729 (or 44135727 counting only the distinct ones).

The product of its (nonzero) digits is 1146880, while the sum is 48.

The spelling of 28070285484 in words is "twenty-eight billion, seventy million, two hundred eighty-five thousand, four hundred eighty-four".