531331338 has 16 divisors (see below), whose sum is σ = 1067701536. Its totient is φ = 176270640.

The previous prime is 531331337. The next prime is 531331343. The reversal of 531331338 is 833133135.

It is not an unprimeable number, because it can be changed into a prime (531331337) 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 in 7 ways as a sum of consecutive naturals, for example, 208581 + ... + 211112.

It is an arithmetic number, because the mean of its divisors is an integer number (66731346).

Almost surely, 2^531331338 is an apocalyptic number.

531331338 is an abundant number, since it is smaller than the sum of its proper divisors (536370198).

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

531331338 is a wasteful number, since it uses less digits than its factorization.

531331338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419909.

The product of its digits is 9720, while the sum is 30.

The square root of 531331338 is about 23050.6255446571. The cubic root of 531331338 is about 809.9442820994.

The spelling of 531331338 in words is "five hundred thirty-one million, three hundred thirty-one thousand, three hundred thirty-eight".