2218883720 has 32 divisors (see below), whose sum is σ = 4998196800. Its totient is φ = 886538688.

The previous prime is 2218883701. The next prime is 2218883789. The reversal of 2218883720 is 273888122.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4211 + ... + 66749.

It is an arithmetic number, because the mean of its divisors is an integer number (156193650).

Almost surely, 2^2218883720 is an apocalyptic number.

2218883720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2218883720 is an abundant number, since it is smaller than the sum of its proper divisors (2779313080).

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

2218883720 is a wasteful number, since it uses less digits than its factorization.

2218883720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63437 (or 63433 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 2218883720 is about 47105.0286062964. The cubic root of 2218883720 is about 1304.3020631487.

The spelling of 2218883720 in words is "two billion, two hundred eighteen million, eight hundred eighty-three thousand, seven hundred twenty".