229881984 has 32 divisors (see below), whose sum is σ = 610625040. Its totient is φ = 76627200.

The previous prime is 229881961. The next prime is 229881989. The reversal of 229881984 is 489188922.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (229881989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 298942 + ... + 299709.

Almost surely, 2^229881984 is an apocalyptic number.

229881984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

229881984 is an abundant number, since it is smaller than the sum of its proper divisors (380743056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

229881984 is an equidigital number, since it uses as much as digits as its factorization.

229881984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598668 (or 598656 counting only the distinct ones).

The product of its digits is 663552, while the sum is 51.

The square root of 229881984 is about 15161.8595165633. The cubic root of 229881984 is about 612.5877560781.

The spelling of 229881984 in words is "two hundred twenty-nine million, eight hundred eighty-one thousand, nine hundred eighty-four".