218117048 has 32 divisors (see below), whose sum is σ = 426882960. Its totient is φ = 104382720.

The previous prime is 218116991. The next prime is 218117057. The reversal of 218117048 is 840711812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11111 + ... + 23657.

Almost surely, 2^218117048 is an apocalyptic number.

It is an amenable number.

218117048 is a deficient number, since it is larger than the sum of its proper divisors (208765912).

218117048 is a wasteful number, since it uses less digits than its factorization.

218117048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12647 (or 12643 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 32.

The square root of 218117048 is about 14768.7862737599. The cubic root of 218117048 is about 601.9538601076.

The spelling of 218117048 in words is "two hundred eighteen million, one hundred seventeen thousand, forty-eight".