228571429 has 4 divisors (see below), whose sum is σ = 228854080. Its totient is φ = 228288780.

The previous prime is 228571423. The next prime is 228571471. The reversal of 228571429 is 924175822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228571429 - 2¹⁷ = 228440357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228571391 and 228571400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228571423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140109 + ... + 141730.

It is an arithmetic number, because the mean of its divisors is an integer number (57213520).

Almost surely, 2^228571429 is an apocalyptic number.

It is an amenable number.

228571429 is a deficient number, since it is larger than the sum of its proper divisors (282651).

228571429 is an equidigital number, since it uses as much as digits as its factorization.

228571429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282650.

The product of its digits is 80640, while the sum is 40.

The square root of 228571429 is about 15118.5789345428. The cubic root of 228571429 is about 611.4214178479.

The spelling of 228571429 in words is "two hundred twenty-eight million, five hundred seventy-one thousand, four hundred twenty-nine".