2243349664 has 96 divisors (see below), whose sum is σ = 4675482000. Its totient is φ = 1058365440.

The previous prime is 2243349637. The next prime is 2243349707. The reversal of 2243349664 is 4669433422.

It can be written as a sum of positive squares in 8 ways, for example, as 858021264 + 1385328400 = 29292^2 + 37220^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2243349664.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6427762 + ... + 6428110.

Almost surely, 2^2243349664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2243349664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2337741000).

2243349664 is an abundant number, since it is smaller than the sum of its proper divisors (2432132336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2243349664 is a wasteful number, since it uses less digits than its factorization.

2243349664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 538 counting only the distinct ones).

The product of its digits is 746496, while the sum is 43.

The square root of 2243349664 is about 47364.0123300381. The cubic root of 2243349664 is about 1309.0784000254.

The spelling of 2243349664 in words is "two billion, two hundred forty-three million, three hundred forty-nine thousand, six hundred sixty-four".