229664868 has 24 divisors (see below), whose sum is σ = 541090368. Its totient is φ = 75811296.

The previous prime is 229664861. The next prime is 229664873. The reversal of 229664868 is 868466922.

It is a self number, because there is not a number n which added to its sum of digits gives 229664868.

It is not an unprimeable number, because it can be changed into a prime (229664861) 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, 91671 + ... + 94142.

It is an arithmetic number, because the mean of its divisors is an integer number (22545432).

Almost surely, 2^229664868 is an apocalyptic number.

It is an amenable number.

229664868 is an abundant number, since it is smaller than the sum of its proper divisors (311425500).

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

229664868 is a wasteful number, since it uses less digits than its factorization.

229664868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185923 (or 185921 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 229664868 is about 15154.6978854743. The cubic root of 229664868 is about 612.3948389776.

The spelling of 229664868 in words is "two hundred twenty-nine million, six hundred sixty-four thousand, eight hundred sixty-eight".