2443703138 has 4 divisors (see below), whose sum is σ = 3665554710. Its totient is φ = 1221851568.

The previous prime is 2443703137. The next prime is 2443703191. The reversal of 2443703138 is 8313073442.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1478171809 + 965531329 = 38447^2 + 31073^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2443703098 and 2443703107.

It is not an unprimeable number, because it can be changed into a prime (2443703137) 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 as a sum of consecutive naturals, namely, 610925783 + ... + 610925786.

Almost surely, 2^2443703138 is an apocalyptic number.

2443703138 is a deficient number, since it is larger than the sum of its proper divisors (1221851572).

2443703138 is a wasteful number, since it uses less digits than its factorization.

2443703138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221851571.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 2443703138 is about 49433.8258482995. The cubic root of 2443703138 is about 1346.9438205032.

The spelling of 2443703138 in words is "two billion, four hundred forty-three million, seven hundred three thousand, one hundred thirty-eight".