218006734 has 8 divisors (see below), whose sum is σ = 356738328. Its totient is φ = 99093960.

The previous prime is 218006729. The next prime is 218006743. The reversal of 218006734 is 437600812.

It is a sphenic number, since it is the product of 3 distinct primes.

218006734 is a modest number, since divided by 6734 gives 218 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 218006696 and 218006705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4954677 + ... + 4954720.

It is an arithmetic number, because the mean of its divisors is an integer number (44592291).

Almost surely, 2^218006734 is an apocalyptic number.

218006734 is a deficient number, since it is larger than the sum of its proper divisors (138731594).

218006734 is a wasteful number, since it uses less digits than its factorization.

218006734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9909410.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 218006734 is about 14765.0511004873. The cubic root of 218006734 is about 601.8523624078.

The spelling of 218006734 in words is "two hundred eighteen million, six thousand, seven hundred thirty-four".