2218983680 has 36 divisors (see below), whose sum is σ = 5315162412. Its totient is φ = 887592960.

The previous prime is 2218983677. The next prime is 2218983709. The reversal of 2218983680 is 863898122.

It can be written as a sum of positive squares in 2 ways, for example, as 1682968576 + 536015104 = 41024^2 + 23152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865511 + ... + 868070.

Almost surely, 2^2218983680 is an apocalyptic number.

2218983680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2218983680 is an abundant number, since it is smaller than the sum of its proper divisors (3096178732).

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

2218983680 is an equidigital number, since it uses as much as digits as its factorization.

2218983680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1733602 (or 1733588 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 2218983680 is about 47106.0896275630. The cubic root of 2218983680 is about 1304.3216489845.

The spelling of 2218983680 in words is "two billion, two hundred eighteen million, nine hundred eighty-three thousand, six hundred eighty".