8145444238 has 8 divisors (see below), whose sum is σ = 12219231888. Its totient is φ = 4072366944.

The previous prime is 8145444193. The next prime is 8145444247. The reversal of 8145444238 is 8324445418.

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

It is a junction number, because it is equal to n+sod(n) for n = 8145444194 and 8145444203.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 147931 + ... + 195382.

It is an arithmetic number, because the mean of its divisors is an integer number (1527403986).

Almost surely, 2^8145444238 is an apocalyptic number.

8145444238 is a deficient number, since it is larger than the sum of its proper divisors (4073787650).

8145444238 is a wasteful number, since it uses less digits than its factorization.

8145444238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355178.

The product of its digits is 491520, while the sum is 43.

The square root of 8145444238 is about 90252.1148671875. The cubic root of 8145444238 is about 2012.0476346941.

The spelling of 8145444238 in words is "eight billion, one hundred forty-five million, four hundred forty-four thousand, two hundred thirty-eight".