229816 has 16 divisors (see below), whose sum is σ = 450000. Its totient is φ = 109824.

The previous prime is 229813. The next prime is 229819. The reversal of 229816 is 618922.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (229813) and next prime (229819).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441 + ... + 808.

It is an arithmetic number, because the mean of its divisors is an integer number (28125).

2²²⁹⁸¹⁶ is an apocalyptic number.

It is an amenable number.

229816 is a deficient number, since it is larger than the sum of its proper divisors (220184).

229816 is a wasteful number, since it uses less digits than its factorization.

229816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1278 (or 1274 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 229816 is about 479.3912806883. The cubic root of 229816 is about 61.2529139250.

The spelling of 229816 in words is "two hundred twenty-nine thousand, eight hundred sixteen".