239228866 has 8 divisors (see below), whose sum is σ = 367188624. Its totient is φ = 116832660.

The previous prime is 239228863. The next prime is 239228929. The reversal of 239228866 is 668822932.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (239228861) 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 3 ways as a sum of consecutive naturals, for example, 1390780 + ... + 1390951.

It is an arithmetic number, because the mean of its divisors is an integer number (45898578).

Almost surely, 2^239228866 is an apocalyptic number.

239228866 is a deficient number, since it is larger than the sum of its proper divisors (127959758).

239228866 is a wasteful number, since it uses less digits than its factorization.

239228866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781776.

The product of its digits is 497664, while the sum is 46.

The square root of 239228866 is about 15467.0251179728. The cubic root of 239228866 is about 620.7802057786.

The spelling of 239228866 in words is "two hundred thirty-nine million, two hundred twenty-eight thousand, eight hundred sixty-six".