545306004 has 72 divisors (see below), whose sum is σ = 1454238240. Its totient is φ = 171813312.

The previous prime is 545305997. The next prime is 545306009. The reversal of 545306004 is 400603545.

545306004 is a `hidden beast` number, since 5 + 4 + 53 + 0 + 600 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545306009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 537802 + ... + 538814.

Almost surely, 2^545306004 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 545306004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (727119120).

545306004 is an abundant number, since it is smaller than the sum of its proper divisors (908932236).

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

545306004 is a wasteful number, since it uses less digits than its factorization.

545306004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 545306004 is about 23351.7880257594. The cubic root of 545306004 is about 816.9837652026.

Adding to 545306004 its reverse (400603545), we get a palindrome (945909549).

The spelling of 545306004 in words is "five hundred forty-five million, three hundred six thousand, four".