549144448 has 64 divisors (see below), whose sum is σ = 1133766720. Its totient is φ = 264775680.

The previous prime is 549144439. The next prime is 549144461. The reversal of 549144448 is 844441945.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413161 + ... + 414487.

It is an arithmetic number, because the mean of its divisors is an integer number (17715105).

Almost surely, 2^549144448 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 549144448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566883360).

549144448 is an abundant number, since it is smaller than the sum of its proper divisors (584622272).

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

549144448 is a wasteful number, since it uses less digits than its factorization.

549144448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1443 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 549144448 is about 23433.8312701957. The cubic root of 549144448 is about 818.8962186421.

The spelling of 549144448 in words is "five hundred forty-nine million, one hundred forty-four thousand, four hundred forty-eight".