2243739971 has 8 divisors (see below), whose sum is σ = 2460143664. Its totient is φ = 2029407520.

The previous prime is 2243739937. The next prime is 2243739989. The reversal of 2243739971 is 1799373422.

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

It is a cyclic number.

It is not a de Polignac number, because 2243739971 - 2¹⁸ = 2243477827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2243739931) 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, 515540 + ... + 519873.

It is an arithmetic number, because the mean of its divisors is an integer number (307517958).

Almost surely, 2^2243739971 is an apocalyptic number.

2243739971 is a deficient number, since it is larger than the sum of its proper divisors (216403693).

2243739971 is a wasteful number, since it uses less digits than its factorization.

2243739971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035621.

The product of its digits is 571536, while the sum is 47.

The square root of 2243739971 is about 47368.1324415477. The cubic root of 2243739971 is about 1309.1543151985.

The spelling of 2243739971 in words is "two billion, two hundred forty-three million, seven hundred thirty-nine thousand, nine hundred seventy-one".