234709218 has 16 divisors (see below), whose sum is σ = 521576160. Its totient is φ = 78236388.

The previous prime is 234709213. The next prime is 234709219. The reversal of 234709218 is 812907432.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (234709213) 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, 2173180 + ... + 2173287.

It is an arithmetic number, because the mean of its divisors is an integer number (32598510).

Almost surely, 2^234709218 is an apocalyptic number.

234709218 is an abundant number, since it is smaller than the sum of its proper divisors (286866942).

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

234709218 is a wasteful number, since it uses less digits than its factorization.

234709218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4346478 (or 4346472 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 234709218 is about 15320.2225179662. Note that the first 3 decimals coincide. The cubic root of 234709218 is about 616.8459469323.

The spelling of 234709218 in words is "two hundred thirty-four million, seven hundred nine thousand, two hundred eighteen".