2220973864 has 16 divisors (see below), whose sum is σ = 4171264020. Its totient is φ = 1108636800.

The previous prime is 2220973837. The next prime is 2220973871. The reversal of 2220973864 is 4683790222.

It can be written as a sum of positive squares in 2 ways, for example, as 2205053764 + 15920100 = 46958^2 + 3990^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2220973864.

It is an unprimeable number.

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, 226159 + ... + 235774.

Almost surely, 2^2220973864 is an apocalyptic number.

It is an amenable number.

2220973864 is a deficient number, since it is larger than the sum of its proper divisors (1950290156).

2220973864 is a wasteful number, since it uses less digits than its factorization.

2220973864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462540 (or 462536 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 2220973864 is about 47127.2093805691. The cubic root of 2220973864 is about 1304.7114767580.

The spelling of 2220973864 in words is "two billion, two hundred twenty million, nine hundred seventy-three thousand, eight hundred sixty-four".