229429 has 4 divisors (see below), whose sum is σ = 230476. Its totient is φ = 228384.

The previous prime is 229423. The next prime is 229433. The reversal of 229429 is 924922.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 106929 + 122500 = 327^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 229429 - 2¹⁵ = 196661 is a prime.

It is a Duffinian number.

229429 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 229397 and 229406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54 + ... + 679.

It is an arithmetic number, because the mean of its divisors is an integer number (57619).

2²²⁹⁴²⁹ is an apocalyptic number.

It is an amenable number.

229429 is a deficient number, since it is larger than the sum of its proper divisors (1047).

229429 is an equidigital number, since it uses as much as digits as its factorization.

229429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046.

The product of its digits is 2592, while the sum is 28.

The square root of 229429 is about 478.9874737402. The cubic root of 229429 is about 61.2185122063.

The spelling of 229429 in words is "two hundred twenty-nine thousand, four hundred twenty-nine".