234218356 has 6 divisors (see below), whose sum is σ = 409882130. Its totient is φ = 117109176.

The previous prime is 234218329. The next prime is 234218359. The reversal of 234218356 is 653812432.

It can be written as a sum of positive squares in only one way, i.e., 225900900 + 8317456 = 15030^2 + 2884^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234218359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29277291 + ... + 29277298.

Almost surely, 2^234218356 is an apocalyptic number.

It is an amenable number.

234218356 is a deficient number, since it is larger than the sum of its proper divisors (175663774).

234218356 is a wasteful number, since it uses less digits than its factorization.

234218356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58554593 (or 58554591 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 234218356 is about 15304.1940656802. The cubic root of 234218356 is about 616.4156306996.

The spelling of 234218356 in words is "two hundred thirty-four million, two hundred eighteen thousand, three hundred fifty-six".