521222338 has 16 divisors (see below), whose sum is σ = 962256960. Its totient is φ = 206197776.

The previous prime is 521222327. The next prime is 521222353. The reversal of 521222338 is 833222125.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1431748 + ... + 1432111.

It is an arithmetic number, because the mean of its divisors is an integer number (60141060).

Almost surely, 2^521222338 is an apocalyptic number.

521222338 is a deficient number, since it is larger than the sum of its proper divisors (441034622).

521222338 is a wasteful number, since it uses less digits than its factorization.

521222338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863881.

The product of its digits is 5760, while the sum is 28.

The square root of 521222338 is about 22830.2943038411. The cubic root of 521222338 is about 804.7747465898.

The spelling of 521222338 in words is "five hundred twenty-one million, two hundred twenty-two thousand, three hundred thirty-eight".