549749824 has 28 divisors (see below), whose sum is σ = 1174827724. Its totient is φ = 253730304.

The previous prime is 549749821. The next prime is 549749833. The reversal of 549749824 is 428947945.

It can be written as a sum of positive squares in 2 ways, for example, as 115777600 + 433972224 = 10760^2 + 20832^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (549749821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329547 + ... + 331210.

It is an arithmetic number, because the mean of its divisors is an integer number (41958133).

Almost surely, 2^549749824 is an apocalyptic number.

It is an amenable number.

549749824 is an abundant number, since it is smaller than the sum of its proper divisors (625077900).

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

549749824 is a wasteful number, since it uses less digits than its factorization.

549749824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660782 (or 660772 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 549749824 is about 23446.7444222007. The cubic root of 549749824 is about 819.1970247796.

The spelling of 549749824 in words is "five hundred forty-nine million, seven hundred forty-nine thousand, eight hundred twenty-four".