218864296 has 16 divisors (see below), whose sum is σ = 468995040. Its totient is φ = 93798960.

The previous prime is 218864263. The next prime is 218864299. The reversal of 218864296 is 692468812.

It is not an unprimeable number, because it can be changed into a prime (218864299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1954090 + ... + 1954201.

It is an arithmetic number, because the mean of its divisors is an integer number (29312190).

Almost surely, 2^218864296 is an apocalyptic number.

It is an amenable number.

218864296 is an abundant number, since it is smaller than the sum of its proper divisors (250130744).

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

218864296 is a wasteful number, since it uses less digits than its factorization.

218864296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908304 (or 3908300 counting only the distinct ones).

The product of its digits is 331776, while the sum is 46.

The square root of 218864296 is about 14794.0628631894. The cubic root of 218864296 is about 602.6404885798.

The spelling of 218864296 in words is "two hundred eighteen million, eight hundred sixty-four thousand, two hundred ninety-six".