549032240 has 20 divisors (see below), whose sum is σ = 1276500144. Its totient is φ = 219612864.

The previous prime is 549032219. The next prime is 549032243. The reversal of 549032240 is 42230945.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (549032243) 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 3 ways as a sum of consecutive naturals, for example, 3431372 + ... + 3431531.

Almost surely, 2^549032240 is an apocalyptic number.

It is an amenable number.

549032240 is an abundant number, since it is smaller than the sum of its proper divisors (727467904).

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

549032240 is a wasteful number, since it uses less digits than its factorization.

549032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6862916 (or 6862910 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 549032240 is about 23431.4370024546. The cubic root of 549032240 is about 818.8404391677.

The spelling of 549032240 in words is "five hundred forty-nine million, thirty-two thousand, two hundred forty".