305229 has 8 divisors (see below), whose sum is σ = 412992. Its totient is φ = 200480.

The previous prime is 305219. The next prime is 305231. The reversal of 305229 is 922503.

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

It is a cyclic number.

It is not a de Polignac number, because 305229 - 2⁷ = 305101 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504 + ... + 929.

It is an arithmetic number, because the mean of its divisors is an integer number (51624).

2³⁰⁵²²⁹ is an apocalyptic number.

It is an amenable number.

305229 is a deficient number, since it is larger than the sum of its proper divisors (107763).

305229 is a wasteful number, since it uses less digits than its factorization.

305229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 305229 is about 552.4753388161. The cubic root of 305229 is about 67.3299974385.

It can be divided in two parts, 3052 and 29, that added together give a triangular number (3081 = T₇₈).

The spelling of 305229 in words is "three hundred five thousand, two hundred twenty-nine".