229518828 has 72 divisors (see below), whose sum is σ = 723340800. Its totient is φ = 59614560.

The previous prime is 229518827. The next prime is 229518829. The reversal of 229518828 is 828815922.

It is an interprime number because it is at equal distance from previous prime (229518827) and next prime (229518829).

It is not an unprimeable number, because it can be changed into a prime (229518827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38628 + ... + 44171.

It is an arithmetic number, because the mean of its divisors is an integer number (10046400).

Almost surely, 2^229518828 is an apocalyptic number.

229518828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

229518828 is an abundant number, since it is smaller than the sum of its proper divisors (493821972).

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

229518828 is a wasteful number, since it uses less digits than its factorization.

229518828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82827 (or 82822 counting only the distinct ones).

The product of its digits is 184320, while the sum is 45.

The square root of 229518828 is about 15149.8788113965. The cubic root of 229518828 is about 612.2650076189.

The spelling of 229518828 in words is "two hundred twenty-nine million, five hundred eighteen thousand, eight hundred twenty-eight".