2213257916 has 12 divisors (see below), whose sum is σ = 3876701640. Its totient is φ = 1105628880.

The previous prime is 2213257909. The next prime is 2213257919. The reversal of 2213257916 is 6197523122.

It is a self number, because there is not a number n which added to its sum of digits gives 2213257916.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213257919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245030 + ... + 253901.

It is an arithmetic number, because the mean of its divisors is an integer number (323058470).

Almost surely, 2^2213257916 is an apocalyptic number.

It is an amenable number.

2213257916 is a deficient number, since it is larger than the sum of its proper divisors (1663443724).

2213257916 is a wasteful number, since it uses less digits than its factorization.

2213257916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500044 (or 500042 counting only the distinct ones).

The product of its digits is 45360, while the sum is 38.

The square root of 2213257916 is about 47045.2751719022. The cubic root of 2213257916 is about 1303.1988120148.

The spelling of 2213257916 in words is "two billion, two hundred thirteen million, two hundred fifty-seven thousand, nine hundred sixteen".