2243397916 has 12 divisors (see below), whose sum is σ = 3931411680. Its totient is φ = 1120137440.

The previous prime is 2243397913. The next prime is 2243397931. The reversal of 2243397916 is 6197933422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243397913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 387145 + ... + 392896.

It is an arithmetic number, because the mean of its divisors is an integer number (327617640).

Almost surely, 2^2243397916 is an apocalyptic number.

It is an amenable number.

2243397916 is a deficient number, since it is larger than the sum of its proper divisors (1688013764).

2243397916 is a wasteful number, since it uses less digits than its factorization.

2243397916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780764 (or 780762 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The square root of 2243397916 is about 47364.5217013748. The cubic root of 2243397916 is about 1309.0877855735.

The spelling of 2243397916 in words is "two billion, two hundred forty-three million, three hundred ninety-seven thousand, nine hundred sixteen".