549720000 has 280 divisors, whose sum is σ = 2023414800. Its totient is φ = 146304000.

The previous prime is 549719959. The next prime is 549720001. The reversal of 549720000 is 27945.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549720001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1079746 + ... + 1080254.

Almost surely, 2^549720000 is an apocalyptic number.

549720000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549720000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1011707400).

549720000 is an abundant number, since it is smaller than the sum of its proper divisors (1473694800).

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

549720000 is an equidigital number, since it uses as much as digits as its factorization.

549720000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 549720000 is about 23446.1084190959. The cubic root of 549720000 is about 819.1822106631.

Adding to 549720000 its reverse (27945), we get a palindrome (549747945).

The spelling of 549720000 in words is "five hundred forty-nine million, seven hundred twenty thousand".