2218936472 has 16 divisors (see below), whose sum is σ = 4272952560. Its totient is φ = 1079482464.

The previous prime is 2218936471. The next prime is 2218936481. The reversal of 2218936472 is 2746398122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218936471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3747908 + ... + 3748499.

It is an arithmetic number, because the mean of its divisors is an integer number (267059535).

Almost surely, 2^2218936472 is an apocalyptic number.

It is an amenable number.

2218936472 is a deficient number, since it is larger than the sum of its proper divisors (2054016088).

2218936472 is a wasteful number, since it uses less digits than its factorization.

2218936472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7496450 (or 7496446 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 2218936472 is about 47105.5885431867. The cubic root of 2218936472 is about 1304.3123992765.

The spelling of 2218936472 in words is "two billion, two hundred eighteen million, nine hundred thirty-six thousand, four hundred seventy-two".