535820 has 24 divisors (see below), whose sum is σ = 1143744. Its totient is φ = 210816.

The previous prime is 535811. The next prime is 535849. The reversal of 535820 is 28535.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1277 + ... + 1643.

It is an arithmetic number, because the mean of its divisors is an integer number (47656).

2⁵³⁵⁸²⁰ is an apocalyptic number.

It is an amenable number.

535820 is an abundant number, since it is smaller than the sum of its proper divisors (607924).

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

535820 is a wasteful number, since it uses less digits than its factorization.

535820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 535820 is about 731.9972677545. The cubic root of 535820 is about 81.2218679727.

The spelling of 535820 in words is "five hundred thirty-five thousand, eight hundred twenty".