4038687243 has 16 divisors (see below), whose sum is σ = 5984870400. Its totient is φ = 2691724680.

The previous prime is 4038687241. The next prime is 4038687283. The reversal of 4038687243 is 3427868304.

It is not a de Polignac number, because 4038687243 - 2¹ = 4038687241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4038687241) 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 15 ways as a sum of consecutive naturals, for example, 91798 + ... + 128468.

It is an arithmetic number, because the mean of its divisors is an integer number (374054400).

Almost surely, 2^4038687243 is an apocalyptic number.

4038687243 is a deficient number, since it is larger than the sum of its proper divisors (1946183157).

4038687243 is a wasteful number, since it uses less digits than its factorization.

4038687243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40759 (or 40753 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 45.

The square root of 4038687243 is about 63550.6667392247. Note that the first 3 decimals coincide. The cubic root of 4038687243 is about 1592.5023218267.

The spelling of 4038687243 in words is "four billion, thirty-eight million, six hundred eighty-seven thousand, two hundred forty-three".