549890880 has 448 divisors, whose sum is σ = 2240206848. Its totient is φ = 110960640.

The previous prime is 549890849. The next prime is 549890881. The reversal of 549890880 is 88098945.

It is a tau number, because it is divible by the number of its divisors (448).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549890881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3178474 + ... + 3178646.

Almost surely, 2^549890880 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 549890880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1120103424).

549890880 is an abundant number, since it is smaller than the sum of its proper divisors (1690315968).

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

549890880 is a wasteful number, since it uses less digits than its factorization.

549890880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 51.

The square root of 549890880 is about 23449.7522374971. The cubic root of 549890880 is about 819.2670825702.

The spelling of 549890880 in words is "five hundred forty-nine million, eight hundred ninety thousand, eight hundred eighty".