229664 has 12 divisors (see below), whose sum is σ = 452214. Its totient is φ = 114816.

The previous prime is 229639. The next prime is 229681. The reversal of 229664 is 466922.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 85264 = 380^2 + 292^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3557 + ... + 3620.

2²²⁹⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

229664 is a deficient number, since it is larger than the sum of its proper divisors (222550).

229664 is an equidigital number, since it uses as much as digits as its factorization.

229664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7187 (or 7179 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 229664 is about 479.2327200849. The cubic root of 229664 is about 61.2394067477.

The spelling of 229664 in words is "two hundred twenty-nine thousand, six hundred sixty-four".