2243718731 has 8 divisors (see below), whose sum is σ = 2266623840. Its totient is φ = 2220835392.

The previous prime is 2243718691. The next prime is 2243718761. The reversal of 2243718731 is 1378173422.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2243718731 is a prime.

It is a super-2 number, since 2×2243718731² = 10068547487680500722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243718761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273335 + ... + 281423.

It is an arithmetic number, because the mean of its divisors is an integer number (283327980).

Almost surely, 2^2243718731 is an apocalyptic number.

2243718731 is a deficient number, since it is larger than the sum of its proper divisors (22905109).

2243718731 is a wasteful number, since it uses less digits than its factorization.

2243718731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10885.

The product of its digits is 56448, while the sum is 38.

The square root of 2243718731 is about 47367.9082396510. The cubic root of 2243718731 is about 1309.1501842199.

The spelling of 2243718731 in words is "two billion, two hundred forty-three million, seven hundred eighteen thousand, seven hundred thirty-one".