229478 has 8 divisors (see below), whose sum is σ = 346680. Its totient is φ = 113920.

The previous prime is 229469. The next prime is 229487. The reversal of 229478 is 874922.

It is an interprime number because it is at equal distance from previous prime (229469) and next prime (229487).

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

229478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 38 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (43335).

2²²⁹⁴⁷⁸ is an apocalyptic number.

229478 is a deficient number, since it is larger than the sum of its proper divisors (117202).

229478 is a wasteful number, since it uses less digits than its factorization.

229478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822.

The product of its digits is 8064, while the sum is 32.

The square root of 229478 is about 479.0386205725. The cubic root of 229478 is about 61.2228701174. Note that the first 3 decimals are identical.

It can be divided in two parts, 229 and 478, that added together give a palindrome (707).

The spelling of 229478 in words is "two hundred twenty-nine thousand, four hundred seventy-eight".