2218565828 has 12 divisors (see below), whose sum is σ = 3902001600. Its totient is φ = 1103708232.

The previous prime is 2218565803. The next prime is 2218565831. The reversal of 2218565828 is 8285658122.

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 3 ways as a sum of consecutive naturals, for example, 1392776 + ... + 1394367.

It is an arithmetic number, because the mean of its divisors is an integer number (325166800).

Almost surely, 2^2218565828 is an apocalyptic number.

It is an amenable number.

2218565828 is a deficient number, since it is larger than the sum of its proper divisors (1683435772).

2218565828 is a wasteful number, since it uses less digits than its factorization.

2218565828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787346 (or 2787344 counting only the distinct ones).

The product of its digits is 614400, while the sum is 47.

The square root of 2218565828 is about 47101.6541960046. The cubic root of 2218565828 is about 1304.2397725188.

The spelling of 2218565828 in words is "two billion, two hundred eighteen million, five hundred sixty-five thousand, eight hundred twenty-eight".