228140229 has 8 divisors (see below), whose sum is σ = 308037760. Its totient is φ = 150168096.

The previous prime is 228140219. The next prime is 228140251. The reversal of 228140229 is 922041822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228140229 - 2¹² = 228136133 is a prime.

It is a super-3 number, since 3×228140229³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228140196 and 228140205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228140219) 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 7 ways as a sum of consecutive naturals, for example, 481072 + ... + 481545.

It is an arithmetic number, because the mean of its divisors is an integer number (38504720).

Almost surely, 2^228140229 is an apocalyptic number.

It is an amenable number.

228140229 is a deficient number, since it is larger than the sum of its proper divisors (79897531).

228140229 is an equidigital number, since it uses as much as digits as its factorization.

228140229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962699.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 228140229 is about 15104.3116029828. The cubic root of 228140229 is about 611.0366936514.

The spelling of 228140229 in words is "two hundred twenty-eight million, one hundred forty thousand, two hundred twenty-nine".