450534 has 32 divisors (see below), whose sum is σ = 1092096. Its totient is φ = 120960.

The previous prime is 450533. The next prime is 450557. The reversal of 450534 is 435054.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 450534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450533) 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, 399 + ... + 1029.

It is an arithmetic number, because the mean of its divisors is an integer number (34128).

2⁴⁵⁰⁵³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (546048).

450534 is an abundant number, since it is smaller than the sum of its proper divisors (641562).

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

450534 is a wasteful number, since it uses less digits than its factorization.

450534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 450534 is about 671.2182953406. The cubic root of 450534 is about 76.6612430526.

Adding to 450534 its reverse (435054), we get a palindrome (885588).

The spelling of 450534 in words is "four hundred fifty thousand, five hundred thirty-four".