228936411729 has 9 divisors (see below), whose sum is σ = 330688001449. Its totient is φ = 152623317540.

The previous prime is 228936411703. The next prime is 228936411797. The reversal of 228936411729 is 927114639822.

The square root of 228936411729 is 478473.

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

228936411729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 228936411729 - 2¹³ = 228936403537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (228936411799) 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 8 ways as a sum of consecutive naturals, for example, 1355674 + ... + 1515164.

Almost surely, 2^228936411729 is an apocalyptic number.

228936411729 is the 478473-rd square number.

228936411729 is the 239237-th centered octagonal number.

It is an amenable number.

228936411729 is a deficient number, since it is larger than the sum of its proper divisors (101751589720).

228936411729 is an frugal number, since it uses more digits than its factorization.

228936411729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318988 (or 159494 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 228936411729 in words is "two hundred twenty-eight billion, nine hundred thirty-six million, four hundred eleven thousand, seven hundred twenty-nine".