545782320 has 160 divisors (see below), whose sum is σ = 1944964800. Its totient is φ = 140507136.

The previous prime is 545782261. The next prime is 545782417. The reversal of 545782320 is 23287545.

545782320 is a `hidden beast` number, since 54 + 578 + 2 + 32 + 0 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58284 + ... + 66996.

It is an arithmetic number, because the mean of its divisors is an integer number (12156030).

Almost surely, 2^545782320 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 545782320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972482400).

545782320 is an abundant number, since it is smaller than the sum of its proper divisors (1399182480).

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

545782320 is a wasteful number, since it uses less digits than its factorization.

545782320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8764 (or 8752 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 545782320 is about 23361.9845047462. The cubic root of 545782320 is about 817.2215700241.

The spelling of 545782320 in words is "five hundred forty-five million, seven hundred eighty-two thousand, three hundred twenty".