2243312109 has 24 divisors (see below), whose sum is σ = 3341844792. Its totient is φ = 1449031680.

The previous prime is 2243312063. The next prime is 2243312191. The reversal of 2243312109 is 9012133422.

It is a happy number.

2243312109 is a `hidden beast` number, since 2 + 243 + 312 + 109 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1776622500 + 466689609 = 42150^2 + 21603^2 .

It is not a de Polignac number, because 2243312109 - 2¹⁹ = 2242787821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243314109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66277 + ... + 94229.

It is an arithmetic number, because the mean of its divisors is an integer number (139243533).

Almost surely, 2^2243312109 is an apocalyptic number.

It is an amenable number.

2243312109 is a deficient number, since it is larger than the sum of its proper divisors (1098532683).

2243312109 is a wasteful number, since it uses less digits than its factorization.

2243312109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28237 (or 28234 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2243312109 is about 47363.6158775911. The cubic root of 2243312109 is about 1309.0710950692.

The spelling of 2243312109 in words is "two billion, two hundred forty-three million, three hundred twelve thousand, one hundred nine".