20392738652224 has 189 divisors, whose sum is σ = 42441279035103. Its totient is φ = 9721683129600.

The previous prime is 20392738652201. The next prime is 20392738652227. The reversal of 20392738652224 is 42225683729302.

The square root of 20392738652224 is 4515832.

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 (20392738652227) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 146710349947 + ... + 146710350085.

Almost surely, 2^{20392738652224} is an apocalyptic number.

20392738652224 is the 4515832-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20392738652224

20392738652224 is an abundant number, since it is smaller than the sum of its proper divisors (22048540382879).

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

20392738652224 is an frugal number, since it uses more digits than its factorization.

20392738652224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614 (or 303 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 55.

The spelling of 20392738652224 in words is "twenty trillion, three hundred ninety-two billion, seven hundred thirty-eight million, six hundred fifty-two thousand, two hundred twenty-four".