2218492368 has 80 divisors (see below), whose sum is σ = 6373550400. Its totient is φ = 738840960.

The previous prime is 2218492357. The next prime is 2218492379. The reversal of 2218492368 is 8632948122.

2218492368 is a `hidden beast` number, since 22 + 184 + 92 + 368 = 666.

It is an interprime number because it is at equal distance from previous prime (2218492357) and next prime (2218492379).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 875263 + ... + 877793.

It is an arithmetic number, because the mean of its divisors is an integer number (79669380).

Almost surely, 2^2218492368 is an apocalyptic number.

It is an amenable number.

2218492368 is an abundant number, since it is smaller than the sum of its proper divisors (4155058032).

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

2218492368 is a wasteful number, since it uses less digits than its factorization.

2218492368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577 (or 4565 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 2218492368 is about 47100.8743867882. The cubic root of 2218492368 is about 1304.2253772565.

The spelling of 2218492368 in words is "two billion, two hundred eighteen million, four hundred ninety-two thousand, three hundred sixty-eight".