545304672 has 144 divisors (see below), whose sum is σ = 1731457728. Its totient is φ = 161360640.

The previous prime is 545304667. The next prime is 545304679. The reversal of 545304672 is 276403545.

545304672 is a `hidden beast` number, since 54 + 530 + 4 + 6 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545304679) 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 23 ways as a sum of consecutive naturals, for example, 134223 + ... + 138225.

It is an arithmetic number, because the mean of its divisors is an integer number (12024012).

Almost surely, 2^545304672 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 545304672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (865728864).

545304672 is an abundant number, since it is smaller than the sum of its proper divisors (1186153056).

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

545304672 is a wasteful number, since it uses less digits than its factorization.

545304672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073 (or 4062 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

The square root of 545304672 is about 23351.7595054420. The cubic root of 545304672 is about 816.9830999961.

The spelling of 545304672 in words is "five hundred forty-five million, three hundred four thousand, six hundred seventy-two".