229386816 has 70 divisors (see below), whose sum is σ = 679989750. Its totient is φ = 76460544.

The previous prime is 229386767. The next prime is 229386821. The reversal of 229386816 is 618683922.

It can be written as a sum of positive squares in only one way, i.e., 127780416 + 101606400 = 11304^2 + 10080^2 .

It is a super-2 number, since 2×229386816² = 105236622709235712, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 16941 + ... + 27308.

Almost surely, 2^229386816 is an apocalyptic number.

It is an amenable number.

229386816 is an abundant number, since it is smaller than the sum of its proper divisors (450602934).

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

229386816 is an equidigital number, since it uses as much as digits as its factorization.

229386816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44273 (or 44254 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 229386816 is about 15145.5213181983. The cubic root of 229386816 is about 612.1475999243.

The spelling of 229386816 in words is "two hundred twenty-nine million, three hundred eighty-six thousand, eight hundred sixteen".