549080220 has 48 divisors (see below), whose sum is σ = 1655690400. Its totient is φ = 135158016.

The previous prime is 549080177. The next prime is 549080227. The reversal of 549080220 is 22080945.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549080227) 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 15 ways as a sum of consecutive naturals, for example, 351195 + ... + 352754.

It is an arithmetic number, because the mean of its divisors is an integer number (34493550).

Almost surely, 2^549080220 is an apocalyptic number.

It is an amenable number.

549080220 is an abundant number, since it is smaller than the sum of its proper divisors (1106610180).

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

549080220 is a wasteful number, since it uses less digits than its factorization.

549080220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703974 (or 703972 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 549080220 is about 23432.4608182751. The cubic root of 549080220 is about 818.8642913309.

The spelling of 549080220 in words is "five hundred forty-nine million, eighty thousand, two hundred twenty".