545424 has 40 divisors (see below), whose sum is σ = 1538592. Its totient is φ = 165120.

The previous prime is 545387. The next prime is 545429. The reversal of 545424 is 424545.

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

It is a junction number, because it is equal to n+sod(n) for n = 545394 and 545403.

It is not an unprimeable number, because it can be changed into a prime (545429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12 + ... + 1044.

2⁵⁴⁵⁴²⁴ 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 545424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (769296).

545424 is an abundant number, since it is smaller than the sum of its proper divisors (993168).

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

545424 is a wasteful number, since it uses less digits than its factorization.

545424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1049 counting only the distinct ones).

The product of its digits is 3200, while the sum is 24.

The square root of 545424 is about 738.5282662160. The cubic root of 545424 is about 81.7042688610.

Adding to 545424 its reverse (424545), we get a palindrome (969969).

It can be divided in two parts, 545 and 424, that added together give a palindrome (969).

The spelling of 545424 in words is "five hundred forty-five thousand, four hundred twenty-four".