534021 has 16 divisors (see below), whose sum is σ = 777024. Its totient is φ = 324864.

The previous prime is 534019. The next prime is 534029. The reversal of 534021 is 120435.

It is not a de Polignac number, because 534021 - 2¹ = 534019 is a prime.

534021 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1746 + ... + 2028.

It is an arithmetic number, because the mean of its divisors is an integer number (48564).

2⁵³⁴⁰²¹ is an apocalyptic number.

534021 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

534021 is a deficient number, since it is larger than the sum of its proper divisors (243003).

534021 is a wasteful number, since it uses less digits than its factorization.

534021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 534021 is about 730.7674048560. The cubic root of 534021 is about 81.1308660347.

Adding to 534021 its reverse (120435), we get a palindrome (654456).

The spelling of 534021 in words is "five hundred thirty-four thousand, twenty-one".