218203234 has 32 divisors (see below), whose sum is σ = 348880896. Its totient is φ = 102191760.

The previous prime is 218203229. The next prime is 218203243. The reversal of 218203234 is 432302812.

It is a super-2 number, since 2×218203234² = 95225302656117512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 218203199 and 218203208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299779 + ... + 300505.

It is an arithmetic number, because the mean of its divisors is an integer number (10902528).

Almost surely, 2^218203234 is an apocalyptic number.

218203234 is a deficient number, since it is larger than the sum of its proper divisors (130677662).

218203234 is a wasteful number, since it uses less digits than its factorization.

218203234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 218203234 is about 14771.7038286042. The cubic root of 218203234 is about 602.0331343079.

The spelling of 218203234 in words is "two hundred eighteen million, two hundred three thousand, two hundred thirty-four".