528420 has 24 divisors (see below), whose sum is σ = 1479744. Its totient is φ = 140896.

The previous prime is 528419. The next prime is 528433. The reversal of 528420 is 24825.

It is a plaindrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4344 + ... + 4463.

It is an arithmetic number, because the mean of its divisors is an integer number (61656).

2⁵²⁸⁴²⁰ is an apocalyptic number.

It is an amenable number.

528420 is an abundant number, since it is smaller than the sum of its proper divisors (951324).

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

528420 is a wasteful number, since it uses less digits than its factorization.

528420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819 (or 8817 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 528420 is about 726.9250305224. The cubic root of 528420 is about 80.8462255508.

The spelling of 528420 in words is "five hundred twenty-eight thousand, four hundred twenty".