534440 has 32 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 206400.

The previous prime is 534439. The next prime is 534473. The reversal of 534440 is 44435.

It is a happy number.

It is a super-2 number, since 2×534440² = 571252227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a nialpdrome in base 14.

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, 1025 + ... + 1455.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁵³⁴⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 534440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622080).

534440 is an abundant number, since it is smaller than the sum of its proper divisors (709720).

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

534440 is a wasteful number, since it uses less digits than its factorization.

534440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 534440 is about 731.0540335707. The cubic root of 534440 is about 81.1520792741.

Adding to 534440 its reverse (44435), we get a palindrome (578875).

The spelling of 534440 in words is "five hundred thirty-four thousand, four hundred forty".