549286240 has 24 divisors (see below), whose sum is σ = 1297689120. Its totient is φ = 219714432.

The previous prime is 549286217. The next prime is 549286247. The reversal of 549286240 is 42682945.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 549286193 and 549286202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549286247) 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 3 ways as a sum of consecutive naturals, for example, 1716360 + ... + 1716679.

It is an arithmetic number, because the mean of its divisors is an integer number (54070380).

Almost surely, 2^549286240 is an apocalyptic number.

It is an amenable number.

549286240 is an abundant number, since it is smaller than the sum of its proper divisors (748402880).

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

549286240 is a wasteful number, since it uses less digits than its factorization.

549286240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433054 (or 3433046 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 549286240 is about 23436.8564444978. The cubic root of 549286240 is about 818.9666936879.

The spelling of 549286240 in words is "five hundred forty-nine million, two hundred eighty-six thousand, two hundred forty".