218498016 has 48 divisors (see below), whose sum is σ = 625701888. Its totient is φ = 66211200.

The previous prime is 218498009. The next prime is 218498017. The reversal of 218498016 is 610894812.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (218498017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102400 + ... + 104511.

It is an arithmetic number, because the mean of its divisors is an integer number (13035456).

Almost surely, 2^218498016 is an apocalyptic number.

It is an amenable number.

218498016 is an abundant number, since it is smaller than the sum of its proper divisors (407203872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

218498016 is a wasteful number, since it uses less digits than its factorization.

218498016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206935 (or 206927 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 218498016 is about 14781.6783891411. The cubic root of 218498016 is about 602.3041181837.

The spelling of 218498016 in words is "two hundred eighteen million, four hundred ninety-eight thousand, sixteen".