28504244224 has 45 divisors (see below), whose sum is σ = 57050001127. Its totient is φ = 14241316864.

The previous prime is 28504244221. The next prime is 28504244257. The reversal of 28504244224 is 42244240582.

The square root of 28504244224 is 168832.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28504244221) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 21609837 + ... + 21611155.

Almost surely, 2^28504244224 is an apocalyptic number.

28504244224 is the 168832-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28504244224

28504244224 is an abundant number, since it is smaller than the sum of its proper divisors (28545756903).

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

28504244224 is an frugal number, since it uses more digits than its factorization.

28504244224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666 (or 1321 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 37.

It can be divided in two parts, 285042 and 44224, that added together give a triangular number (329266 = T₈₁₁).

The spelling of 28504244224 in words is "twenty-eight billion, five hundred four million, two hundred forty-four thousand, two hundred twenty-four".