531316338 has 32 divisors (see below), whose sum is σ = 1231080576. Its totient is φ = 149724288.

The previous prime is 531316309. The next prime is 531316339. The reversal of 531316338 is 833613135.

It is a junction number, because it is equal to n+sod(n) for n = 531316299 and 531316308.

It is not an unprimeable number, because it can be changed into a prime (531316339) 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 15 ways as a sum of consecutive naturals, for example, 83581 + ... + 89712.

It is an arithmetic number, because the mean of its divisors is an integer number (38471268).

Almost surely, 2^531316338 is an apocalyptic number.

531316338 is an abundant number, since it is smaller than the sum of its proper divisors (699764238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531316338 is a wasteful number, since it uses less digits than its factorization.

531316338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173378.

The product of its digits is 19440, while the sum is 33.

The square root of 531316338 is about 23050.3001715813. The cubic root of 531316338 is about 809.9366601896.

The spelling of 531316338 in words is "five hundred thirty-one million, three hundred sixteen thousand, three hundred thirty-eight".