531326238 has 16 divisors (see below), whose sum is σ = 1063028880. Its totient is φ = 177046016.

The previous prime is 531326233. The next prime is 531326239. The reversal of 531326238 is 832623135.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 531326199 and 531326208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531326231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4708 + ... + 32936.

It is an arithmetic number, because the mean of its divisors is an integer number (66439305).

Almost surely, 2^531326238 is an apocalyptic number.

531326238 is an abundant number, since it is smaller than the sum of its proper divisors (531702642).

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

531326238 is a wasteful number, since it uses less digits than its factorization.

531326238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31371.

The product of its digits is 25920, while the sum is 33.

The square root of 531326238 is about 23050.5149183267. The cubic root of 531326238 is about 809.9416906662.

The spelling of 531326238 in words is "five hundred thirty-one million, three hundred twenty-six thousand, two hundred thirty-eight".