534840 has 32 divisors (see below), whose sum is σ = 1604880. Its totient is φ = 142592.

The previous prime is 534839. The next prime is 534841. The reversal of 534840 is 48435.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (534839) and next prime (534841).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 534840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534841) by changing a digit.

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, 2109 + ... + 2348.

2⁵³⁴⁸⁴⁰ is an apocalyptic number.

It is an amenable number.

534840 is an abundant number, since it is smaller than the sum of its proper divisors (1070040).

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

534840 is a wasteful number, since it uses less digits than its factorization.

534840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471 (or 4467 counting only the distinct ones).

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

The square root of 534840 is about 731.3275599894. The cubic root of 534840 is about 81.1723202346.

The spelling of 534840 in words is "five hundred thirty-four thousand, eight hundred forty".