2216362949 has 6 divisors (see below), whose sum is σ = 2290165830. Its totient is φ = 2144866440.

The previous prime is 2216362927. The next prime is 2216362969. The reversal of 2216362949 is 9492636122.

It can be written as a sum of positive squares in only one way, i.e., 1616602849 + 599760100 = 40207^2 + 24490^2 .

It is not a de Polignac number, because 2216362949 - 2⁸ = 2216362693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216362969) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1152194 + ... + 1154115.

It is an arithmetic number, because the mean of its divisors is an integer number (381694305).

Almost surely, 2^2216362949 is an apocalyptic number.

It is an amenable number.

2216362949 is a deficient number, since it is larger than the sum of its proper divisors (73802881).

2216362949 is an equidigital number, since it uses as much as digits as its factorization.

2216362949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2306371 (or 2306340 counting only the distinct ones).

The product of its digits is 279936, while the sum is 44.

The square root of 2216362949 is about 47078.2640822705. The cubic root of 2216362949 is about 1303.8079569412.

The spelling of 2216362949 in words is "two billion, two hundred sixteen million, three hundred sixty-two thousand, nine hundred forty-nine".