20976308224 has 117 divisors (see below), whose sum is σ = 43946181189. Its totient is φ = 10010787840.

The previous prime is 20976308201. The next prime is 20976308251. The reversal of 20976308224 is 42280367902.

The square root of 20976308224 is 144832.

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

It can be written as a sum of positive squares in only one way, i.e., 11907174400 + 9069133824 = 109120^2 + 95232^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 287346652 + ... + 287346724.

Almost surely, 2^20976308224 is an apocalyptic number.

20976308224 is the 144832-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20976308224

20976308224 is an abundant number, since it is smaller than the sum of its proper divisors (22969872965).

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

20976308224 is an frugal number, since it uses more digits than its factorization.

20976308224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 20976308224 in words is "twenty billion, nine hundred seventy-six million, three hundred eight thousand, two hundred twenty-four".