228729573 has 12 divisors (see below), whose sum is σ = 330521568. Its totient is φ = 152424360.

The previous prime is 228729559. The next prime is 228729593. The reversal of 228729573 is 375927822.

228729573 is a `hidden beast` number, since 2 + 2 + 8 + 72 + 9 + 573 = 666.

It is not a de Polignac number, because 228729573 - 2²⁰ = 227680997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228729533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33088 + ... + 39398.

It is an arithmetic number, because the mean of its divisors is an integer number (27543464).

Almost surely, 2^228729573 is an apocalyptic number.

It is an amenable number.

228729573 is a deficient number, since it is larger than the sum of its proper divisors (101791995).

228729573 is a wasteful number, since it uses less digits than its factorization.

228729573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10344 (or 10341 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 228729573 is about 15123.8081513883. The cubic root of 228729573 is about 611.5623954230.

The spelling of 228729573 in words is "two hundred twenty-eight million, seven hundred twenty-nine thousand, five hundred seventy-three".