523538238 has 16 divisors (see below), whose sum is σ = 1061824896. Its totient is φ = 172054680.

The previous prime is 523538237. The next prime is 523538243. The reversal of 523538238 is 832835325.

It is a junction number, because it is equal to n+sod(n) for n = 523538196 and 523538205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523538231) 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, 614056 + ... + 614907.

It is an arithmetic number, because the mean of its divisors is an integer number (66364056).

Almost surely, 2^523538238 is an apocalyptic number.

523538238 is an abundant number, since it is smaller than the sum of its proper divisors (538286658).

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

523538238 is a wasteful number, since it uses less digits than its factorization.

523538238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229039.

The product of its digits is 172800, while the sum is 39.

The square root of 523538238 is about 22880.9579781966. The cubic root of 523538238 is about 805.9649131838.

It can be divided in two parts, 523538 and 238, that added together give a triangular number (523776 = T₁₀₂₃).

The spelling of 523538238 in words is "five hundred twenty-three million, five hundred thirty-eight thousand, two hundred thirty-eight".