218604096 has 70 divisors (see below), whose sum is σ = 648026390. Its totient is φ = 72866304.

The previous prime is 218604091. The next prime is 218604107. The reversal of 218604096 is 690406812.

It can be written as a sum of positive squares in only one way, i.e., 217857600 + 746496 = 14760^2 + 864^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 218604096.

It is not an unprimeable number, because it can be changed into a prime (218604091) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 15901 + ... + 26268.

Almost surely, 2^218604096 is an apocalyptic number.

It is an amenable number.

218604096 is an abundant number, since it is smaller than the sum of its proper divisors (429422294).

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

218604096 is an equidigital number, since it uses as much as digits as its factorization.

218604096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42193 (or 42174 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 218604096 is about 14785.2661795451. The cubic root of 218604096 is about 602.4015745741.

The spelling of 218604096 in words is "two hundred eighteen million, six hundred four thousand, ninety-six".