523438 has 8 divisors (see below), whose sum is σ = 790632. Its totient is φ = 259896.

The previous prime is 523433. The next prime is 523459. The reversal of 523438 is 834325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520 + ... + 1147.

It is an arithmetic number, because the mean of its divisors is an integer number (98829).

2⁵²³⁴³⁸ is an apocalyptic number.

523438 is a deficient number, since it is larger than the sum of its proper divisors (267194).

523438 is a wasteful number, since it uses less digits than its factorization.

523438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1826.

The product of its digits is 2880, while the sum is 25.

The square root of 523438 is about 723.4901519717. The cubic root of 523438 is about 80.5913472517.

It can be divided in two parts, 523 and 438, that added together give a square (961 = 31²).

The spelling of 523438 in words is "five hundred twenty-three thousand, four hundred thirty-eight".