523428 has 24 divisors (see below), whose sum is σ = 1245888. Its totient is φ = 170976.

The previous prime is 523427. The next prime is 523433. The reversal of 523428 is 824325.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 523398 and 523407.

It is not an unprimeable number, because it can be changed into a prime (523427) 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, 225 + ... + 1047.

It is an arithmetic number, because the mean of its divisors is an integer number (51912).

2⁵²³⁴²⁸ is an apocalyptic number.

It is an amenable number.

523428 is an abundant number, since it is smaller than the sum of its proper divisors (722460).

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

523428 is a wasteful number, since it uses less digits than its factorization.

523428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 881 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 523428 is about 723.4832409946. The cubic root of 523428 is about 80.5908340304.

The spelling of 523428 in words is "five hundred twenty-three thousand, four hundred twenty-eight".