2243723968 has 56 divisors (see below), whose sum is σ = 4806269280. Its totient is φ = 1036062720.

The previous prime is 2243723959. The next prime is 2243723969. The reversal of 2243723968 is 8693273422.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (2243723969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16408 + ... + 68968.

Almost surely, 2^2243723968 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 2243723968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2403134640).

2243723968 is an abundant number, since it is smaller than the sum of its proper divisors (2562545312).

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

2243723968 is a wasteful number, since it uses less digits than its factorization.

2243723968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52625 (or 52615 counting only the distinct ones).

The product of its digits is 870912, while the sum is 46.

The square root of 2243723968 is about 47367.9635196617. The cubic root of 2243723968 is about 1309.1512027692.

The spelling of 2243723968 in words is "two billion, two hundred forty-three million, seven hundred twenty-three thousand, nine hundred sixty-eight".