229391566 has 8 divisors (see below), whose sum is σ = 355952520. Its totient is φ = 110740728.

The previous prime is 229391551. The next prime is 229391651. The reversal of 229391566 is 665193922.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1977456 + ... + 1977571.

It is an arithmetic number, because the mean of its divisors is an integer number (44494065).

Almost surely, 2^229391566 is an apocalyptic number.

229391566 is a deficient number, since it is larger than the sum of its proper divisors (126560954).

229391566 is a wasteful number, since it uses less digits than its factorization.

229391566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3955058.

The product of its digits is 174960, while the sum is 43.

The square root of 229391566 is about 15145.6781294203. The cubic root of 229391566 is about 612.1518252195.

The spelling of 229391566 in words is "two hundred twenty-nine million, three hundred ninety-one thousand, five hundred sixty-six".