284628004221 has 32 divisors (see below), whose sum is σ = 416119017600. Its totient is φ = 171621838080.

The previous prime is 284628004181. The next prime is 284628004223. The reversal of 284628004221 is 122400826482.

It is not a de Polignac number, because 284628004221 - 2⁷ = 284628004093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 284628004221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284628004223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10785775 + ... + 10812131.

It is an arithmetic number, because the mean of its divisors is an integer number (13003719300).

Almost surely, 2^284628004221 is an apocalyptic number.

It is an amenable number.

284628004221 is a deficient number, since it is larger than the sum of its proper divisors (131491013379).

284628004221 is a wasteful number, since it uses less digits than its factorization.

284628004221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28029.

The product of its (nonzero) digits is 98304, while the sum is 39.

The spelling of 284628004221 in words is "two hundred eighty-four billion, six hundred twenty-eight million, four thousand, two hundred twenty-one".