229228566 has 36 divisors (see below), whose sum is σ = 533911932. Its totient is φ = 65419704.

The previous prime is 229228543. The next prime is 229228591. The reversal of 229228566 is 665822922.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 259161 + ... + 260043.

It is an arithmetic number, because the mean of its divisors is an integer number (14830887).

Almost surely, 2^229228566 is an apocalyptic number.

229228566 is an abundant number, since it is smaller than the sum of its proper divisors (304683366).

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

229228566 is an frugal number, since it uses more digits than its factorization.

229228566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 895 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 229228566 is about 15140.2961001428. The cubic root of 229228566 is about 612.0067975237.

The spelling of 229228566 in words is "two hundred twenty-nine million, two hundred twenty-eight thousand, five hundred sixty-six".