229881 has 16 divisors (see below), whose sum is σ = 334400. Its totient is φ = 139968.

The previous prime is 229849. The next prime is 229897. The reversal of 229881 is 188922.

It is not a de Polignac number, because 229881 - 2⁵ = 229849 is a prime.

It is a super-2 number, since 2×229881² = 105690548322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (229841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2055 + ... + 2163.

It is an arithmetic number, because the mean of its divisors is an integer number (20900).

2²²⁹⁸⁸¹ is an apocalyptic number.

It is an amenable number.

229881 is a deficient number, since it is larger than the sum of its proper divisors (104519).

229881 is a wasteful number, since it uses less digits than its factorization.

229881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168.

The product of its digits is 2304, while the sum is 30.

The square root of 229881 is about 479.4590702031. The cubic root of 229881 is about 61.2586882025.

The spelling of 229881 in words is "two hundred twenty-nine thousand, eight hundred eighty-one".