549398304 has 144 divisors (see below), whose sum is σ = 1922985792. Its totient is φ = 144889344.

The previous prime is 549398303. The next prime is 549398329. The reversal of 549398304 is 403893945.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 549398304.

It is not an unprimeable number, because it can be changed into a prime (549398303) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 15727 + ... + 36689.

It is an arithmetic number, because the mean of its divisors is an integer number (13354068).

Almost surely, 2^549398304 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 549398304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961492896).

549398304 is an abundant number, since it is smaller than the sum of its proper divisors (1373587488).

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

549398304 is a wasteful number, since it uses less digits than its factorization.

549398304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20999 (or 20988 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 549398304 is about 23439.2470868840. The cubic root of 549398304 is about 819.0223844106.

The spelling of 549398304 in words is "five hundred forty-nine million, three hundred ninety-eight thousand, three hundred four".