229378817 has 8 divisors (see below), whose sum is σ = 230651520. Its totient is φ = 228110400.

The previous prime is 229378771. The next prime is 229378819. The reversal of 229378817 is 718873922.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 229378817 - 2⁸ = 229378561 is a prime.

It is a super-2 number, since 2×229378817² = 105229283376638978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229378819) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 175388 + ... + 176690.

It is an arithmetic number, because the mean of its divisors is an integer number (28831440).

Almost surely, 2^229378817 is an apocalyptic number.

It is an amenable number.

229378817 is a deficient number, since it is larger than the sum of its proper divisors (1272703).

229378817 is a wasteful number, since it uses less digits than its factorization.

229378817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143.

The product of its digits is 338688, while the sum is 47.

The square root of 229378817 is about 15145.2572444313. The cubic root of 229378817 is about 612.1404843954.

The spelling of 229378817 in words is "two hundred twenty-nine million, three hundred seventy-eight thousand, eight hundred seventeen".