549818324 has 24 divisors (see below), whose sum is σ = 1050271488. Its totient is φ = 249770240.

The previous prime is 549818317. The next prime is 549818329. The reversal of 549818324 is 423818945.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549818329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114557 + ... + 119259.

It is an arithmetic number, because the mean of its divisors is an integer number (43761312).

Almost surely, 2^549818324 is an apocalyptic number.

It is an amenable number.

549818324 is a deficient number, since it is larger than the sum of its proper divisors (500453164).

549818324 is a wasteful number, since it uses less digits than its factorization.

549818324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7375 (or 7373 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 549818324 is about 23448.2051338690. The cubic root of 549818324 is about 819.2310479318.

The spelling of 549818324 in words is "five hundred forty-nine million, eight hundred eighteen thousand, three hundred twenty-four".