229378809 has 8 divisors (see below), whose sum is σ = 333641952. Its totient is φ = 139017440.

The previous prime is 229378771. The next prime is 229378819. The reversal of 229378809 is 908873922.

It is a happy number.

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 229378809 - 2⁸ = 229378553 is a prime.

It is a super-2 number, since 2×229378809² = 105229276036516962, which contains 22 as substring.

It is a Curzon number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3475404 + ... + 3475469.

It is an arithmetic number, because the mean of its divisors is an integer number (41705244).

Almost surely, 2^229378809 is an apocalyptic number.

It is an amenable number.

229378809 is a deficient number, since it is larger than the sum of its proper divisors (104263143).

229378809 is a wasteful number, since it uses less digits than its factorization.

229378809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6950887.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 229378809 is about 15145.2569803223. The cubic root of 229378809 is about 612.1404772789.

The spelling of 229378809 in words is "two hundred twenty-nine million, three hundred seventy-eight thousand, eight hundred nine".