234117818 has 12 divisors (see below), whose sum is σ = 386004570. Its totient is φ = 106417080.

The previous prime is 234117811. The next prime is 234117823. The reversal of 234117818 is 818711432.

It can be written as a sum of positive squares in only one way, i.e., 228100609 + 6017209 = 15103^2 + 2453^2 .

It is a super-2 number, since 2×234117818² = 109622305410162248, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (234117811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 483473 + ... + 483956.

Almost surely, 2^234117818 is an apocalyptic number.

234117818 is a deficient number, since it is larger than the sum of its proper divisors (151886752).

234117818 is a wasteful number, since it uses less digits than its factorization.

234117818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967453 (or 967442 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 234117818 is about 15300.9090579612. The cubic root of 234117818 is about 616.3274194749.

The spelling of 234117818 in words is "two hundred thirty-four million, one hundred seventeen thousand, eight hundred eighteen".