838818243 has 48 divisors (see below), whose sum is σ = 1324477440. Its totient is φ = 510148800.

The previous prime is 838818229. The next prime is 838818263. The reversal of 838818243 is 342818838.

It is not a de Polignac number, because 838818243 - 2⁶ = 838818179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (838818263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346708 + ... + 349118.

It is an arithmetic number, because the mean of its divisors is an integer number (27593280).

Almost surely, 2^838818243 is an apocalyptic number.

838818243 is a deficient number, since it is larger than the sum of its proper divisors (485659197).

838818243 is a wasteful number, since it uses less digits than its factorization.

838818243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520 (or 2517 counting only the distinct ones).

The product of its digits is 294912, while the sum is 45.

The square root of 838818243 is about 28962.3590717331. The cubic root of 838818243 is about 943.0961147608.

The spelling of 838818243 in words is "eight hundred thirty-eight million, eight hundred eighteen thousand, two hundred forty-three".