523072 has 28 divisors (see below), whose sum is σ = 1133856. Its totient is φ = 237440.

The previous prime is 523049. The next prime is 523093. The reversal of 523072 is 270325.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333 + ... + 1075.

2⁵²³⁰⁷² is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566928).

523072 is an abundant number, since it is smaller than the sum of its proper divisors (610784).

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

523072 is a wasteful number, since it uses less digits than its factorization.

523072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766 (or 756 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 523072 is about 723.2371671865. The cubic root of 523072 is about 80.5725590918.

Adding to 523072 its reverse (270325), we get a palindrome (793397).

The spelling of 523072 in words is "five hundred twenty-three thousand, seventy-two".