229698820 has 96 divisors (see below), whose sum is σ = 538513920. Its totient is φ = 81768960.

The previous prime is 229698817. The next prime is 229698827. The reversal of 229698820 is 28896922.

It is a happy number.

229698820 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (229698827) 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 31 ways as a sum of consecutive naturals, for example, 1088515 + ... + 1088725.

It is an arithmetic number, because the mean of its divisors is an integer number (5609520).

Almost surely, 2^229698820 is an apocalyptic number.

229698820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 229698820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269256960).

229698820 is an abundant number, since it is smaller than the sum of its proper divisors (308815100).

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

229698820 is a wasteful number, since it uses less digits than its factorization.

229698820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 229698820 is about 15155.8180247719. The cubic root of 229698820 is about 612.4250148381.

The spelling of 229698820 in words is "two hundred twenty-nine million, six hundred ninety-eight thousand, eight hundred twenty".